If “crypto” was just a scam then explain to me why the powers that be are rushing to get it out of the hands of the people and into the hands of central banks? To safe us from con artists? Or because it has the very real possibility to disrupt ingrained power structures?

everyone that’s said so has just been validated for it

Sounds like a case of confirmation bias. People like you existed when computers were invented and when the internet started. There are very real examples that I could point to to suggest how detrimental it all was, but in the grand scheme of things, it would be and extremely silly endeavor.

People saying that AI is overstated right now are being called fools

You didn’t say it was overstated though, you said it’d return to nothing, and that is foolish. People like you are always good at putting up a straw man. You’re not arguing against AI or crypto, but against the idea you have of them, an amalgam of the worst where everything is blown out of proportion. And every once in a while something goes to shit which makes you go “see! I was right!”.

Every invention or leap in technology always has its benefits and downsides, instead of being a pessimistic drama queen, you should find the truth somewhere in the middle.