Yeah, I'll throw my voice into the downvote chain and say you're absolutely right. Saying crypto is tied to Moore's law is hot garbage. I really, really don't want to defend crypto here since 98% of its use now is for scamming people, but there are a lot of clever consensus algorithms now that escape scalability issues. Computational waste is still a problem across the board, but that trend is shrinking in some of the newer coins, not growing.
Like I said, I wouldn't touch crypto with a ten-foot pole, but everything you said here is completely correct, right down to the co-optation of what started as a set of impressive enthusiast projects.
There actually are a couple phones out with this already, though they're mostly Chinese builds. E.g., this one has a screen that wraps around the back: https://youtu.be/PTpoj4f25dk?t=119