I like Socialism and I think that the best way forwards for society is going to be a Socialist way. If we could really relate to ourselves and our neighbors as part of an international brotherhood of man, instead of a series of stupid dichtomoies (White vs. Black, male vs female, Duke fans vs Carolina fans, Russians vs. Ukrainians, etc.) we could go a long way towards making this gay world a more efficient, loving, and prosperous society.
Think about it: individual countries wouldn't need to hang on to strategic food bearing land; each country could focus on what it's been gifted with. Brazilians wouldn't have to burn down the rain forest to graze cattle, because there would be enough beef coming out of natual pastures (e.g. America, Argentina) for everyone. We wouldn't have to fear those of other races because there would no longer be a material difference, except perhaps a small one determined by genetics. We would understand that captialist politics is just a distraction game to keep the workers fighting each other instead of aiming up.
Really consider it: the countries on our planet which are blessed with rain forests could keep them, we could generate enough solar power in the Arizona desert to run the lower 48, all the resources capitalists manipulate politicians into squandering on "defense" could be used to put bread on the tables of those who have nothing. Automation and computerization could make work largely obsolete, and we could be artists or gamers or Neets or whatever you want.
oligopolies start appearing when nobody can charge lower prices or sell better things than existing businesses, which only happens if startups are forced to jump through expensive, time-wasting hoops
fixing wages creates unemployment and poorer conditions by cutting off jobs that fall short of the requirement and sacrificing shit like AC, and unions allow people to ignore work (striking) while expecting a wage
something that the state is subsidizing or running is more likely to be shit than consumer-funded alternatives because it has income independent of how likely the customers are going to buy its stuff again, so it has no real incentive to offer anything good
state-funded education and media can pump out horseshit because they are being funded regardless of how many children are enrolled or how many viewers are sticking around to watch ads
Counterpoint: regulation of things like the food supply, water supply, drugs keep these products safe and consistent. Before the Food and Drug Act,
factory owners directed their workers to do ghastly shit like process aborted baby cows into lunchmeat,
feed their dairy cows leftover mash from the distillation process, and then add chalk power to keep the milk the appropriate color and opacity. Industrialists fed pigs trash, and the pigs would get parasites, which were passed on to the people who bought the meat and ate it.
Counterpoint: when you don't have labor laws then industrialists will defintitely turn off the A/C (that shit costs money, we don't pay you to be cooled off)
lock the fire exits to keep workers from sneaking out for a break, fire workers if they are injured on the job, withhold wages, employ children, etc. What keeps this from happening in the US, today? Regulation!
Counterpoint: The US Post Office is the most-used shipping company in the United States, because it offers its services for a lower price than competing private carriers. Public medical care programs like Mass Health and Medicaid save way more money than private insurance companies on the same procedures and pills because these public healthcare systems are orders of magnitude larger than private insurance programs. So I disagree strongly with everything you've said so far.
Also: the only state-funded media companies I know of is NPR and PBS, and state and national funding account for a tiny fraction of its overall budget.