You are framing it as if money is the root of the problem. But it's not the case. It would be cheaper for Youtube to not ban anyone. It would be cheaper not to

You are framing it as if money is the root of the problem. But it's not the case. It would be cheaper for Youtube to not ban anyone. It would be cheaper not to spend money on algorithms and people that post something they don't like. They don't make money - at least not directly - by controlling the narrative of public discussion and distorting it to their liking. They get something which is very important to somebody who already has the money - power. With power, they can ensure they keep the money, and also enjoy all the benefits of being rich and powerful. If you think getting the government to rule it would be better, you are deluded. Government is concentrated power, so it would only multiply the problems, and since the government can not be replaced by something else (at least not without very much unpleasantness and shooting and other bad things), they would have zero interest in sharing their power with anybody else. And if you think you will be able to control this power by just voting once in two years, you are double deluded.