The aversion to blockchain and cryptocurrency is because they're a scam.

There's literally no use case for crypto that makes sense. Nothing that couldn't be better done without a distributed blockchain.

Blockchain is a way to set up a really slow, really limited, and hard to manage database that's hosted among multiple untrusted entities. Literally every use case would be better handled by using a single trusted database and cryptographic signatures for verification (as opposed to "crypto", which really means blockchain. I hate how words get co-opted.).

AI at least has positive uses, even if it's also being hyped well beyond its actual usefulness.