> But I don't think you can limit people's wealth and not call it communism.
Of course you can. Those billionaires don't pay much taxes, but normal people do. And we don't call that communism.
> It will either end up in the hand of politicians (who are genuinely more evil than tech bros)
This is a very weird take. In a functioning democracy (which the US are not at the moment), politicians are elected to represent the people. If they are evil, we change them. Tech bros are not elected, period.
> What we should do is focus of punishingpeople who abuse thier power.
That's where you completely miss the problem: the problem is that when people get too powerful, we cannot punish them anymore.
Similar with companies: you have to prevent companies to become as big as the FAANGs before they do. Otherwise they become too powerful and do whatever they want.