Not anyone. If you disable the Export option for Assets bought in the Marketplace, not any programmer can enable it or found a way to export it. At the least, it will cost them more money and effort to exploit it. It’s similar to a Scanner, you can always scan an existing physical product but that Scanner is going to cost you thousands of dollars, even so… if they’ll eventually get recognition (become big sellers), they’ll get sued cause the original Artist has evidence of creating those products before them.
If you’d somehow manage to track down where your asset is used or shared illegally and by who then in some cases you can claim damages. If it’s on a torrent in the middle of nowhere, or mass produced as a printed product in the middle of nowhere, no one is going to shut it down.
Obviously not, it’s impossible to search the internet, NFT’s tried it and failed miserably. Current Technology is not ready to do that yet. But making it harder for them, is a good discouragement… specially if they need to spend more money. You hit them where it hurts 
. FAB can help with that.