He is crazy. Should we all stop driving cars too? Do you know how much damage cars do? Mining cryptocurrency doesn't use any more electricity then driving to the shops and paying in fiat. People seem to forget that banks use servers too they just not called miners and they work differently. Every single online transfer or trasnfer from your credit card all goes online and there has to be server computers to process this and they are owned by banks. Instead of that we have miners that can be used by anyone and not just the banks like the banks server computers are all private and controlled.

On a global scale mining is not a problem in the slightest. The OP should fight other causes.... Perhaps use hemp and solar power to power your mining rigs?