@grantonthenet @T0xF03AE one argument is the environmental impact but that's been mentioned already. I'd rather approach from a personal morals angle.
I know that it's not great to judge an entire platform/spec/economy on the actions of the people that use it, especially if one uses these tools for a benign or even benevolent purpose. but more than a significant percentage of crypto users are opportunity capitalists that will actively harm others financially in the pursuit of personal profits, e.g. how more than half of new cryptocoins that see any sort of wide public usage are rugpulls and scams, or how people will steal artists' works to mint them as NFTs and leech off their own self-made markets.
If one chooses to conduct business where it's common knowledge that this is the current culture surrounding that area of tech (being anything related to cryptocurrency/NFTs), then I simply have no good words to say about them, in the same way that I wouldn't have anything good to say about a human rights activist that chooses to instance on truth.social