Right. The point is that you get renewable energy which is desirable rather than non-renewable energy. If the latter were cheaper the situation would be less appealing.
If it was cheaper there would be no need for bitcoin as a driver (and then also to completely waste it, in the broken window fallacy sense).
I feel like we’re talking past each other. I’m not saying we should want bitcoin wasting a bunch of power. I’m saying there could be positive outcomes to that power suddenly becoming available.