Just like you the liquidity of USDT might decrease but if I was the CEO of Tether Im gonna fight for it and try to hire someone to fix this.

USDT has already been here for such a long time and there are so many things going on including rumours about their real asset and etc. But the good thing is something like this can push tether to comply with the government so they can be more transparent.

Stablecoin diversify is also needed so you choose USDC or other stablecoin aswell