Because the vast majority of investors don't really understand nor should they actually understand. They're investors, they're all in it for the possibility of profit. I don't particularly see any reason why they'd deny NFTs, gamefi, and whatnot crypto craze when there are a lot of dumb people out there giving them money for those kinds of projects lol.

And I don't think you need to mind other coins in the first place. As long as Bitcoin itself is untouched, then I don't think there's any problem. Let other sdo whatever the hell they want lol.