Personally, my skepticism on crypto has not been based on technical merits but on practical ones. Basically, there is no technical solution to a legislative problem. It's hard to trust any crypto enthusiast who focuses on dethroning fiat when fiat (i.e. governments) can just... make crypto illegal or heavily impractical. There's no technical solution to that.
From the moment you have to go through rigorous KYC to onramp to crypto (as most will do these days), and EU slowly making "anonymous" crypto difficult/illegal, I feel it really loses merit as anything other than what BTC is mostly used for - an alternative asset class. That's not very interesting IMO, because then the only innovation of (the most popular) crypto is artificial, technologically enforced scarcity.
Of course, there are many flavours of enthusiast and skeptic, who each prefer or dislike crypto for different reasons, so my argument might not even apply for many.