First, I think JPMorgan, GS, MicroStrategy, Grayscale, pumping billions into BTC this year and the OCC announcing that banks can use blockchain for settlement probably has more to do with BTC being viewed as legit than TSLA jumping on board as a tech company.

Second, about 25% of energy is consumed in passenger transportation and Tesla is pretty much single-handedly moving the world to electrifying that making it a) 5x more efficient, b) possible to run from renewables.

Third Tesla is the only organization in the world ramping up to do planet-scale battery production that will make it possible to transition all energy production to renewables. (If people want to pay to produce and consume clean energy for arbitrary purposes that's fine by me... as long as they don't kill me in the process).

The idea that Tesla's influence on BTC mining will waste more energy than their electrification efforts have saved and/or redirected to renewables is nutty.