Dont forget Nvidia technology was condsidered too sensitive to be exported to China....until the Trump administration decided they could export it if they paid a 10% export tax.
The part of this you're missing is that China doesn't want it [1].
Why? Because China will make their own. This has been obvious to me for at least 1-2 years. The US doesn't allow EUV lithography machines from ASML to be exported to China either. I believe the previous export ban on the most advanced chip was a strategic error because it created a captive market of Chinese customers for Chinese chips.
China will replicate EUV far quicker than Western governments expect. All it takes is to throw money at a few key ASML engineers and researchers and the commitment of the state to follow through with this project, which they will.
I'm absolutely reminded of the atomic bomb. This created quite the debate in military and foreign policy circles about what to do. The prevailing presumption was that the USSR would take 20 years to develop their own bomb if it ever happened.
It took 4 years.
And then in 1952 the US detonated the first thermonuclear bomb. The USSR followed suit in 1953.
[1]: https://www.tomshardware.com/tech-industry/artificial-intell...
We've moved beyond telling people not to forget and have entered "expect nothing less" territory