No, one guy does. One singular guy. You can watch a video on post-game dialogue or read the txt files if you want. He even directly states that the other Brotherhood members don't agree with using the Minutemen to do it. Whether it's because they wanted the honor of doing it themselves, didn't believe the Minutemen were up to the task, or didn't want people in harm's way is up to your interpretation and probably varies by person.
Uh, no, he's not an imbecile, he's entirely focused on his mission in the Commonwealth, as is most of the Brotherhood. It's also stated that despite returning to hardline BoS policies, he still has a soft spot for Lyons and kept some of his ideals intact, which doesn't really lend itself well to him approving of you threatening to murder settlers for free food. I'm not sure where you get the idea that anyone but you is pilfering the commoners because that's not really supported by the game. Once again, there's literally a document in the game where Teagan asks for permission to do what you're saying they should do: protect the common people and then trade with them, getting good deals in the process. Teagan then sends soldiers to pick up the food that he asks you procure, and he leaves it up to you how to do it, with an implicit suggestion that you do it forcefully. Teagan is quite a piece of shit for that, but that's not an organizational belief of the Brotherhood because he specifically states that this isn't sanctioned by the Brotherhood. No one but you is aware of how the food actually ended up getting procured. There's a lot of great criticism of the Brotherhood in New Vegas (and oddly in some places in 4 considering how 3 treated them) without demonizing them for shit they didn't actually do. I never thought I'd be defending the Fallout 4 BoS of all fucking factions but here I am.
Also, the four people quoted for the BoS being terrible people are people that are either very morally ambiguous or even outright worse than every iteration of the BoS. That's the great thing about Fallout, outside of a few cases every faction should be understandable and able to be supported, at least as the lesser of evils.
It doesn't seem like those other Brotherhood members objected loudly enough. Maybe some wanted Synth blood on their hands?
Uh, yes, Maxson IS an imbecile. Part of managing a large military force that moves from one place to another is MANAGING FOOD SUPPLIES. Any idiot with two brain cells to rub would already have a strategy for ensuring his men would have food in their stomachs, be it through packing enough food for the journey, or packing enough cash and goods to trade with outsiders for food, while journeying through towns and cities that would have food. Leaving the food supply matter up to one dipshit without even checking where he gets the food goes to show that Maxson is a colossal idiot. Either that, or he knows what Teagan is up to and just turns a blind eye because he thinks it's for the greater good. One scenario makes Elder Maxson out to be a complete moron who doesn't deserve the privilege of commanding a parade, let alone a military outfit with energy weapons and power armor. The other makes him just another glorified bandit leader who deserves to be shot.
Again, if Maxson does have a strategy for getting food without banditry, he'd just hand Teagan X amount of caps or goods and tell him to send someone to go use that stuff to trade with people for food. Or just post Brotherhood sentries around farms in exchange for crops. It would have been nice to see the BoS trying to appeal to commoners in the Commonwealth by sending guys to wipe out raiders who menace farms while leaving behind power-armored troops to guard said farms, and the grateful farmers send crops and meat up to the Prydwen as thanks. Or you see the farmers going to the Prydwen to pay the Brotherhood protection money in the form of caps and crops just to keep the bandits off their farms, mafia-style. Neither is a reality. You just have Teagan telling the player to confiscate food from the populace forcibly, and Maxson is either turning a blind eye to it, or he's none the wiser. Which goes to show that he's either evil, or clueless. For all you know, the Institute could have a synth replace a local farmer and sell poisoned grain to the Brotherhood for a discount price, then the next day, Maxson and everyone aboard the Prydwen turns up dead. This proves that Maxson really is just a fucking idiot.
If this was Lyons' Brotherhood, they'd be performing security services for the locals pro bono, and the locals would support them by sending them supplies. Kind of like how GNR serves as the BoS' propaganda mill because they provide security for them, except instead of an obnoxious radio jockey spreading pro-Brotherhood messages, you have grateful farmers shipping crops to the Prydwen. That, and everyone aboard the Prydwen sees the Lyons' Brotherhood as a joke that they won't repeat, so no, they didn't take the ideals of Lyons, they shat all over it while praising Maxson for putting them back on the "right" path.
New Vegas sees the Brotherhood as the scum they rightfully are, and all factions want them dead. Of course, the game still gives you the option of working for them, but it hides nothing about how bad the Brotherhood really is, with the ruler of New Vegas calling them terrorists, and with both of the major factions wanting them dead for perfectly valid reasons; Caesar sees them as a dead end, which you yourself can see clearly when Veronica warns the Elder that they're headed for ruin, but he refuses to change even though he understand the truth of Veronica's words. The NCR rightfully wants the Brotherhood dead because the BoS tried to knock them out for daring to use Enclave tech to help rebuild America. The idea that American descendants should be allowed to use American technology to rebuild America was offensive to the West Coast Brotherhood, and that caused the Brotherhood-NCR War that continues all the way to New Vegas.
The Fallout 4 Brotherhood is even worse; at least the New Vegas Brotherhood will leave you alone if you don't cross paths with them, but the FO4 Brotherhood practically declared that all Synths are to be terminated. This despite the fact that Fallout 3 made it clear that Synths are living, thinking beings that deserve to choose their own paths. Quite literally, if you replace mutated people with Synths, the Brotherhood suddenly has the same ideology as the fucking Enclave from Fallouts 2 and 3. Stealing crops from locals is hardly the worst of their crimes; even if they bought the crops from the farms, that still doesn't erase the fact that they're evil pieces of shit for wanting to genocide an entire race of sapient beings just because they were made, not born. If they wanted to be good, the Brotherhood could have easily signed on with the Railroad to break the Institute's power over the Synths and give the Synths free will while settling them in new lives instead of just having them replace living people. Quite literally, the Brotherhood in Fallout 4 is just as bad as the Enclave was at its worst. They're the kind of villain that makes Augustus Autumn look like Santa Claus by comparison.
None of these guys are worse than any iteration of the BoS. Father Clifford is an outright saint who wants to do good with everyone in Rivet City. Robert Edwin House is more of a neutral fellow, who just wants order and peace in New Vegas and the Mojave at any cost. Edward "Caesar" Sallow might be harsh towards conquered tribes and their women, but he plays fair with the civilized communities of the Arizona and the east, many of whom live peacefully under Caesar and whose trade caravans remain unmolested due to Legion protection. None of these guys are calling a fatwa on an entire race of beings or stealing crops and livestock from citizens at gunpoint. In fact, House and Caesar practically ensure that the people living under their rule get to keep their crops.
As for John Henry Eden, well, as I described, Maxson is no different from him. Arthur Maxson wants all Synths dead, Eden wants all Super Mutants dead. Except Eden actually has a justification for his desire when compared to Maxson, since at the time, both the Lyons' Brotherhood and the Enclave forces under Eden's command cannot contain the Super Mutant infestation in DC. While the Lyons' BoS are fighting the mutants block by block, Eden wants to clean the slate and start over by killing all the mutants by installing the FEV in the water purifier. Meanwhile, the Synths are no threat to the Brotherhood at all. They're a nuisance to the Commonwealth, but one can easily join the Railroad to get the Synths off Institute programming so that they can live their own lives instead of copying someone else's. Maxson wants them all dead, for reasons that boggle the mind. Even the New Vegas BoS would probably try to capture them instead so they can study them and the advanced tech that leads to the creation of Synths. Eden wants to commit genocide out of desperation. Maxson just wants to commit genocide based on his own superstitions.
