The problem is that you are solving the issue from the wrong direction. Like getting people to stop littering, the answer is to regulate the producers of the waste, not the end users doing the wasting.
The answer is to lobby governments for green energy, not rail against people doing PoW. People who fold at home are using a lot of energy also.
Not Coinbase, the miners. The arms race dynamic makes electricity cost the only real limit on mining, and unfortunately the more a single BTC is worth the more kWh you can profitably burn to mine one.
The answer is to lobby governments for green energy, not rail against people doing PoW. People who fold at home are using a lot of energy also.