I think the sentiments you have towards crypto as a solution to the world's financial system is in a what similar to the objections people have to electric cars as a solution to climate change. While electric cars are seen to be working and its all fine and dandy climate change activists ignore that lithium mining is doing more harm to the environment than carbon emissions.

Before cars replaced horses we were sure that the world would be a horse dung dump and that cars were a better option.