USDT also trades freely on open markets against USD. If USDT was being printed without USD backing then those markets would decouple.
But it's not worth my time digging it up for you.
If you don't want to believe it, then don't. Doesn't make a difference to me.
Please verify your first claim and I'll admit I was wrong.
[0] https://kenkarlo.com/articles/the-scamming-of-tether-on-bitf...
[1] https://www.kalzumeus.com/2019/10/28/tether-and-bitfinex/
BTC and USDT is a common trading pair on crypto exchanges.
As a result, those behind USDT can print it and buy BTC to manipulate the price.
Don't get me started on exchanges allowing you to trade with yourself. This field is tainted with shady practices.
People are buying and selling tons of BTC with USDT and if it ends up being a fractional reserve and has been printing billions with nothing backing it up, how much of the BTC price might've come out of thin air?