Sounds like eventually they're gonna have to ban the sale of those GPU to any country that doesn't start with the letter U and ends with SA, if they truly want to avoid anyone in China getting a hold of those.
If every other country feels that they want to be such a conduit and suffer the consequences, then that's on them. But realistically US allies are unlikely to do that so the EU, Australia, New Zealand, the UK, Japan, South Korea and Canada may end up being the only countries that can buy high end US technology.
Personally, I'm totally fine with that. I think trade in critical good and services, especially those with obvious military and mass oppression uses should be allies only by default.
As these chips get more powerful, in the future, the chip won't compute before getting an authorization token from some central authority.
It seems that we are just one Moore's law away from that reality.