Let's discuss the potential effects of stable coins which are bound to usd or eur. We usually use them to avoid the volatility or short bitcoin in a way. There are many stable coins in the last year. By writing threat, I didn't mean issues like tether's issue. I mean, they are not coins, they are just usd and eur.
No. I don't think that stable coins is a threat for bitcoin because bitcoin has already prove it's superiority that even it decreased it's price, it still has a chance to recover it's price back up again. And if bitcoin increases it's price most coins like ETH decreased it's price due to popularity of bitcoin that a lot of people are buying it.