>

Or the world of government in general, people will always find a way around a law no matter how well that law is enforced.
It's harder to do in some cases, but where there's a will there's a way.
Anyone found violating sanctions is cut off from future supplies.

Okay, it's the least we could do, but can we do more? Seems to me like this would just be a never-ending game of whack-a-mole, and stupid expensive to administer too. >

Welcome to the world of export controls.