What everyone else said. Plus this idea: we actually can do without electric clothes driers. An air drying system uses much less electricity. But it is worse for other reasons including that it costs people via time, which we care more about. Many believe that the current system including similar systems like proof of stake create big enough costs that the energy cost is well worth it.

Plus, when you dive into exactly which electricity Bitcoin uses, it becomes clear that not all electricity is the same, and bitcoin is better than anything else at using specifically the least desirable electricity. Kinda fun that that property helps a little to incentivize people to build renewable electricity generation.