Well, I would say that as regards the altcoins, these have already practically disappeared from the scene, having lost between 95 and 99% of their value, and have no hope of recovering it.
If this also happens to bitcoin ... many greetings to crypto
If the vast majority of altcoins disappear that will make Bitcoin stronger
Quite a lot of people lost their savings in shitcoins, and it is not unlikely that more are going to lose in the future in all varieties of scams under whatever names. They wouldn't if they weren't so greedy and invested in Bitcoin and top altcoins instead. So the point is, if there are only a few strong and robust coins remaining which pursue different purposes and occupying different niches, it will make the market stronger overall