Anyone that wants to take their money and leave and never come back ought to be encouraged to do so as soon as possible.

The never come back bit solves the imaginary problem you mention.

why do you think that will happen? how could that scenario be prevented, while still taxing money?

if you put more effort into making your point, I'm sure you could get better engagement

The point of being wealthy is that you don't have to care about shit like that. You can be taxed at 90% land still have more money than you could spend in a thousand lifetimes.

Until the early 1980s, the highest tax bracket was taxed at 70%, and before that even more.

It used to be that the US had unique ways of dealing with that, by virtue of its sheer size and dominance. But nowadays the ballon is leaking power from both ends, soft and hard.

I say "see ya!" and wave goodbye.

You think people living in NYC, for example, the financial (and one of the major cultural capitals) of the entire world (not to mention all the other benefits of US residency) are going to bother with packing up their lives and moving overseas because the taxes are too high? Not to mention these people will still have obscene wealth in all likelihood.

Some might, but I don't think we should wring our hands over it.

Rather than worrying about "capital flight" let's instead imaging all the good that could come of us having a more more equal wealth and income distribution.

You tax them on the way out. Plus any transactions to/from tax havens.