You're exaggerating why people dislike cryptocurrency by focusing on a singular reason.
I think the root cause is because it's conflated with bitcoin and the PoW system it's built on top of, which is generally considered to be unproductive. Take away PoW, and you remove the incentives for miners to suck up vast amounts of electricity, the supply of graphics cards, probably even infrastructure hijacks to some point.
(And yes, I understand that the graphic card shortage is more strongly tied to Ethereum's ASIC-resistant hash. But that's still a PoW system.)
I think the root cause is because it's conflated with bitcoin and the PoW system it's built on top of, which is generally considered to be unproductive. Take away PoW, and you remove the incentives for miners to suck up vast amounts of electricity, the supply of graphics cards, probably even infrastructure hijacks to some point.
(And yes, I understand that the graphic card shortage is more strongly tied to Ethereum's ASIC-resistant hash. But that's still a PoW system.)