I very much doubt that people who have bought BTC at $60k, or the people cashing out of USDT while they still can, will want (or be able to) bring their money back into this crazy ecosystem.

Especially so as the price of energy increases and global warming becomes ever more apparent, keeping many afraid of investing in such energy wasteful endeavors.

Investors can learn.

USDT is no longer trusted — but still swapped around due to now-legacy exchanges denominating in it.

Your other points are not true for many cryptocurrencies, and for the ones it is, there are plenty of players who don't hold your concerns — right, wrong, or indifferent, they exist.

You say it's not trusted and yet the most volume in crypto (around 46 billion) is being traded every day it. Are you sure you're not just in your own thought bubble?

Turkish Lira used daily after 75% inflation — maybe shit just isn't that simple?, when your daily workflows rely on (aforementioned) legacy systems.

Not sure what you're point is, USDT has kept it's peg to the dollar despite the fud you eat up.

History suggests that isn't so. The crypto winters last a couple of years then folks are back.

and yes, this point is an easy win, too — just go read all the "cryptocurrency is over" articles back to...2009 and such.