If you really believe that something that is 1 million times less efficient than Visa/MasterCard for a fraction of the service, and that miners really use residential energy when they are active 24/7 and thus by definition a continuous strain on the grid, I have so many scams^W interesting products to sell you
Comparing Bitcoin network to Visa/MasterCard is as pointless as comparing Gold mining to those cc networks. Fair comparison would be Bitcoin network vs Gold mining/storage/securing/transfer activities.
https://digiconomist.net/bitcoin-energy-consumption