What is someone told you refrigeration and air conditioning used X percent of electricity. Would you unplug your frig and turn off your AC in the summer or heat in the winter? I think it is a mistake to cede the point. The question isn't how much energy does bitcoin use. The question is do we need freedom money free from the control of the state and its actors. Energy use is a market problem to solve that the market will do just fine solving. Doesn't need some gov agency to poke their nose into it.