I really don't get NFTs. I feel like every article I read about them (even the critical ones) is describing them in a way which then turns out to be far more mundane.
People (such as the author here) talk about how they are the digital equivalent of trading cards. Pokemon, M:TG etc work because the cards themselves are hard to accurately duplicate. But the images and other digital items supposedly traded via NFTs can all be duplicated easily, like any other file on a computer. The only thing you get here is a record in a database with your (virtual) name on it next to a hash of the file. That's it. It's not even like your 'ownership' according to this database would have any legal implications.
A real world example might be a card system where anyone could easily scan and print out the same card as the one you own, but that in some database somewhere, there's a record of your ownership of the card. It doesn't matter. Everyone has a copy of your card anyway. The reality is that you aren't the owner of it, whatever your protestations.