I go back and forth on it a lot, the energy use is somewhat concerning as it's mostly unnecessary give what it is. That being said, I not really against it because of that. I am pretty against it because of how it's seen, treated, used, and speculated like any other get quick rich scheme.
I do also find the whole NFT crazy really weird for nearly the same reason but with added weirdness of treating as "art" while putting it in the confines of a cold and lifeless digital world. It to me seems the opposite of art.