Stable coin is fiat currency.
wrong. a stable coin is not fiat currency, it is still another altcoin that has a more stable price compared to other altcoins.
Wrong? Really? So what will happen if right now Powell print 1000000000 trillion USD? Will tether lose value against Bitcoin or not? Or will follow Bitcoin just like all other alt coins.
Stable coins are digital asset that represent fiat currencies. The point of them to exist is so people dont need to declare profits to their tax office when exiting Bitcoin. They buy stable coin. It exposes them to fiat. When they decide to buy Bitcoin back they just do it. If they would ignore stable coin and bought USD with bitcoin they would need to pay tax.