The root of your argument relies on your assumption that Bitcoin is useless. Obviously, I disagree with this assessment, as a decentralized network that is permissionless to participate in, can be interacted with from anywhere in the planet, is censorship resistant, and more private, has value. Creating a digital store of value that can give stability to money and maybe even replace fiat currency is valuable to society.
> Shouldn't we be capturing co2 or warming up children in need instead?
Your suggestions on how to spend electricity (aka resources or money) are great, but whose paying for it? Are you suggesting governments commandeer the electricity/power generation market and become responsible for rationing electricity to the public?
Shouldn't we be capturing co2 or warming up children in need instead?