I doubt hypocrisy has ever seriously factored into a single geopolitical decision of any country.

Interactions between nation-states are always driven by self interest. There is zero benefit in acting any differently.

The entire point of sanctions is to exert a strategic influence over a rival.

> “Supercomputing capabilities are vital for the development of many – perhaps almost all – modern weapons and national security systems, such as nuclear weapons and hypersonic weapons, Commerce Secretary Gina Raimondo said in a statement.

I think it'd be a lot more hypocritical if the US was actively locking millions of people up into concentration camps.

I mean there's nothing hypocritical here. What you said is like saying "in a war shooting the opposing side is hypocritical since you aren't shooting your own soldiers". Obviously you only penalize one side.

And? The US prohibited the export of all sorts of products to the Soviet Union because of their potential military applications. Why was China be exempt from these restrictions? China is still a one party, communist state. Perhaps they realized this fact again after the Hong Kong and Xinjiang crackdowns.