While being right about crypto being meaningless for some people (I guess there are people valuing hope in decentralized monetary system, even if it is misplaced.), you failed to mention that most of other industries are equally meaningless and good part of them are even harmful: fashion, fast food, industrial food, banking - in a way we have it, cars in current form(no need for this huge tanks)…
In comparation crypto is just wasteful and isn’t harming anyone.