Naa I think a large chunk just think most of these guys have that in cash laying around. Someones liquid worth is a lot less than what they have. Everyone of these guys has their money tied to a company. If you make them sell the stock to cover the tax you’re going to watch these companies go under.
I’m not saying it’s a good system, just that it doesn’t work the way these memes act like they do.
Would you like to have the gov tax you on your entire worth? Probably not.