1) You're right, and perhaps its a position of privilege to say this, but this does not seem to be a real problem worth solving? I've transacted a lot of money, both ingress and egress, buying a modest home, a car or two, paying off student loans, etc. No one has ever tried to censor me.

2) Beyond censorship, one needs safety. It may not be censored, but its certainly traceable, so how useful is the lack of censorship without anonymity?

3) If we take it that it solves this (both 1 and 2), then moving on to the other part of the question, how does it solve it better than any other distributed infrastructure? You could build a censorship resistant payment system without the insanely excessive hoarding of base wealth (like the gold mining analogy in the payment article), and without the insane environmental impact.

4) Let's say it solves 1, and 2, but we can't do better and I am wrong in 3. Is this problem worth the massive environmental cost to solve?