Chinese government don't care about small percent of population accessing open internet.
In Russia whatever worked month ago will likely not work now. By this time all the wireless mobile internet in Russia is mostly whitelist-only when it works at all. And they start to test whitelists on broadband internet now.
And Iran is likely shut off internet for good until reginme collapses.
I've also been to Shanghai recently and there I can just use HK roaming eSIM and it work super fast, reliable and with no censorship. No passport required to buy it online, no anything. Same with any other tourist eSIM.
US is able to produce cars on its soil and there is no reason to give up this industry to foreign country.
It's pretty sane policy.
The difference is PRC has confidence they can indigenize tech/processes and compete, so giving western companies broader access to even strategic sectors long term worthwhile, especially sectors they're behind in. West either doesn't have that confidence or understands they'll get stomped even in PRC parity/fair JV arrangement and better to lock in with protectionism that now surpass PRC protectionism, or have retarded JV asks.
Which is a pretty sane policy until PRC moves past parity and extend gap despite mountains of ineffective western subsidies.