https://twitter.com/elonmusk/status/1372739631846936581
I think the reason they seem silly to a lot of people is because when you buy an NFT there's nothing extra you can do that other people can't when you hold the NFT.
I can have the exact same experience as the NFT holder for free with no effort.
Sure technically you can also make copies of physical collectibles but its not (trivial + free) like copying and pasting an image.