I am not making an argument about technology, or sociology, or any of the things you seem to be worked up over. I am strictly saying, NFTs get artists paid, in far greater amounts than they had previously, and I consider that valuable. I've yet to hear a refutation (or an acknowledgement) of this, and I consider it a strong refutation of your own quote "Absolutely nothing about adding a cryptographically secure certificate of ownership to that is valuable" - adding the certificate of ownership radically increased the size of the market, and got artists paid. QED.