If they do that, they can be sued. That’s the point of an enforceable license. It’s not just an honor thing, or you could be sure Microsoft wouldn’t abide by it.
An import ban for not respecting the laws of the country you’re trying to import to sounds reasonable. Look at all the Chinese variants of games, it’s only fair to have some give and take.
And Chinese brands often piss on the GPL license, not respecting their obligation to provide the source code.
If they do that, they can be sued. That’s the point of an enforceable license. It’s not just an honor thing, or you could be sure Microsoft wouldn’t abide by it.
You can try, but if they mostly operate in China, the only actual thing that could be done would be an import ban.
An import ban for not respecting the laws of the country you’re trying to import to sounds reasonable. Look at all the Chinese variants of games, it’s only fair to have some give and take.