No, when beanie babies were new you could play with them. When basketball cards were new you could trade them with your friends. They had inherent value first, and then they gained speculative value on the secondary market. Trump’s grift has no inherent value now or ever.
No, you can’t. You can pretend to, but I can pretend to trade things with anyone without paying any money. The only thing stored on the Blockchain is a URL to an image which everyone just agrees to pretend that you own; if that server goes down, you have nothing.