I want the government to look seriously at things that are using the energy footprint of a mid-sized country simply to spin up a new financial instrument. Particularly when there appear to be equivalent things that don't.

If cryptocurrencies didn't have the energy footprint, I would find them pretty uninteresting and/or ridiculous for various reasons, but ultimately it wouldn't bother me that people do what they do with them. When they start adding seriously to the global energy load in a time of climate crisis that makes them pretty offensive.