The US Treasury Secretary said decoupling the world’s two largest economies would destabilise the global economy.

The irony.

Who sanctioned who first?

I find it impossible not to see it as a symmetric situation. The notion the US is restricting access to chips for natsec reasons may be true, if that includes restricting Chinese economic and technical development to maintain its hegemony. That China responds in kind is not only to be expected, but also fair from any possible neutral stance. The special pleading is especially apparent here. "No, it's different when they do it to us because we're the good guys." Really?

https://www.youtube.com/watch?v=8Xt1kUK71lc