If your government passes a law saying that GPUs can only be purchased or rented with a license, as OP was suggesting, all of that capacity disappears with the snap of a finger.
"Dear government, yes, I was spending my money accessing an illegal minution, please don't throw me too far under the jail"
I'd like you to stop and think about this for a minute... which country is going to be exporting powerful GPUs? If the US blocked GPU resources, do you think China will suddenly start allowing everyone to have them? No, they'd jump right on board with their own limitations so they didn't have to worry about internal issues.
If your government passes a law saying that GPUs can only be purchased or rented with a license, as OP was suggesting, all of that capacity disappears with the snap of a finger.