Most arguments against NFTs could be levied just as effectively against the premium value of original physical art.
Or do you hold the view that art as an asset in general is a scam?
Just like physical art, the vast majority that ever gets produced is garbage that won't be preserved.
It takes decades and centuries to really weed out the truly valuable gems from the chaff. That's why "investing" in NFTs (or any art for that matter) is a sucker's game or a game for rich people who have the time and resources to promote their favorite patronized artist and keep their work elevated in our collective consciousness.