Look, there are plenty of technologists who are very into crypto. You can find lots of them here.
But to many, it reeks of some long-reviled parts of the tech scene: vaporware and marketing hype. And that's before you get into the astounding levels of fraud and waste.
At this point, crypto is much more of a social phenomenon than a technological one. That's not a problem in itself. The issue is that foundation is one where legimately interesting technology is neither necessary nor sufficient to solve very many real-world problems, but the financialization at the core of it facilitates these collective delusions that it is.
Everyone's LARPing the original dotcom bubble, but the world's entirely different. The dotcom bubble certainly had its crackpots, but it also had a lot of people who accurately saw that pervasive networking was going to unlock massive opportunity. But the low hanging fruit has been plucked over the past 25 years.
Web3 people are trying to tell the world that a decentralized permissionless log is as the same magnitude of technological impact, and it simply isn't.