I think a lot of alts will die. I don't think that many though. To many people still enjoy speculating on them. On top of that there are still a lot of really cool projects out there when you search around for them.

I think anything built only for speculation without any use case is probably going to die a slow painful death for anyone stuck holding the bag. I really question a lot of these crap DeFi tokens too.

Also, people just like to gamble.