I don't think there are stable coins that are safe anymore, all of them have very terrible risks, seeing some cases that happened to UST makes everyone worried about putting their assets in stable coins because they can collapse instantly when there are some problems in it. for a while maybe USDT is still pretty good, but you have to remember to do it at your own risk.
Honestly, this comment actually leaves me sitting on a fence because to some extent, you are right about your suspicions and to some extent, you are wrong because they aren’t facts.
A lot may have happened in the past with a few coins but when it comes to stable coins, there’s almost always an exception. USDT had issues time ago doesn’t necessarily guarantee condemnation for other stable coins. Good and reliable stable coins are still in the market. But, there could not be any prime reason for any crypto investor to continuously dependent on a stable coin hence we never need to worry on choosing a stable coin.