For example outright confiscation of wealth above $100m is quite a popular sentiment amongst liberals right now
> liberals, when given the power, will corrupt into totalitarism in a few months.
Is your complaint an actual example of that? I've never actually heard the argument - I've heard "billionaires should not exist", but never "we should have a 100% tax on those making more than $100m", so I don't know if the claim you're making is as popular as you're making it out to be, nor do I believe is it an example of totalitarianism.
I also don't see actual examples of liberal governments doing that. People say lots of crazy stuff online, but "liberals say the darndest thing" is not the claim here.
These conversations never go anywhere. The battlelines are already drawn. It just becomes a semantic debate around loosely defined terms like totalitarianism.