You don't think that the 1MWh or so of electricity used (estimates vary from 2MWh down to 700kWh, depending on what you read, so I pick a value in the low end of the middle) is pushing up the price of energy?
Let's reframe those values slightly - every bitcoin transaction uses about as much electricity as it costs to run my house for nearly six months.
Are you sure that's not having an adverse effect on energy prices?