Phil's rancid personality honestly wouldn't be so bad if he didn't always frame himself as "a brutally honest guy who says what others are too afraid to". That's the excuse that every dumb asshole pulls to justify why no one likes them. Phil excuses his non-existent popularity by claiming his opinions are "too tough for people to handle".
In reality he's just a vapid, anti-social sperg who can't control his emotions and physically can't understand how someone who isn't him can feel.
There's plenty of examples of wildly popular streamers who constantly talk shit and are rude to people, but they have a "finesse" that Phil could never achieve. Like Tyler1, he's always taunting and yelling at people, the difference is he can laugh when people insult him back, he's actually capable of banter. And he's clearly aware that his primary goal as a streamer is to make people laugh and enjoy themselves, that's why he gets increasingly dramatic as time goes on. Phil's brain is incapable of thinking about something being done for anyone who isn't him, so he wants money to be thrown at him just for showing up, and then he wants his chat to shut the fuck up while he bashes some dumb bots to death.
Every time Tyler1 turns off his stream, he starts berating his viewers. Watch this clip and tell me there isn't a dramatic difference between him and DSP.
Phil can piss and moan about his popularity being dead the fault of the trolls, but there are very good reasons for why big-time streamers are able to pull in the audience that they do, and it isn't their willingness to "sell out". Tyler can channel his anger into something creative and fun, Phil is a whiny, spoiled brat whose mouth is like a faucet, just blurts out complaints before he even thinks and then bans anyone who calls him out on it.