If fixed supply can be infinitely inflated (
when it comes to price) and thus creating a bubble that can burst, it is not being different from supply that is not fixed.
Example, current Bitcoin price inflated by Tether printer with no real backing.
Fixed supply of BTC doesn't matter, when the price can be infinitely inflated by Tether printer.Inflation means fiat money losing value, not BTC having higher price. You are using the term "inflation" in a wrong way.
Financial bubbles are normal for assets that have lower supply and higher(of fluctuating) demand. I don't care about the BTC price going up and down and price bubbles being formed on the BTC market. If you hate price bubbles, just use some altcoin with an infinite supply.
Tether is being used by the crypto traders for their own convenience. The crypto traders could sell or buy altcoins for tether as well.
Why do you think that Tether is boosting the Bitcoin price only?