I hope you don't really believe that... the market manipulation using USDT is well documented. Bitcoin will fall hard if tether isn't backed... you'll know its happening when bitcoin goes up 50% + in one day. Since BTC is more weighted and tied to USDT than USD the flood of users out of USDT to BTC will for a couple hours skyrocket the currency... then it will crash hard.
I know tether is not backed by dollars. It's laughable to think such a thing is even possible. So it has zero effect on my decisions about bitcoin. If some exchange was duped into believing such nonsense then they should fall. Alts are crypto for the foolish.