First watch this vid.
https://www.youtube.com/watch?v=3LSBZtL_sLsCrypto is incentivising people to destroy the planet.
At the moment the world is focused on getting rid of plastic, I'd say crypto is what we need to get rid of next.
If your crypto isn't green it's going to be taken out and shot. If your favourite coins don't destroy the plane they might have a future.
I got your point regarding the power consumption but It's true that Cryptocurrency will be the main element of the transaction purpose, you have to realize that Already a lot of Money invested in this platform and people are getting engaged in this system day by day.
If this system will get collapse then you can be assured of seeing another economic recession like 2007 in Europe. But Definitely, Cryptoworld has brought us a vulnerable economic system and we are becoming dependnet on this platform day by day.