And there's concerns about the Great Firewall, CCP ownership of all your data and assets, cultural and ethical differences (in regards to privacy, piracy, IP, etc.), censorship and wiretapping, VPN blocking... it's a lot of overhead that's hard to justify. It's just matter of time before you piss off some official and get in trouble. And if they ever invade Taiwan, oof, it's gonna be a real mountain of headaches. Just not worth it. Even if China does nothing hostile, the US will keep using them as a scapegoat for all our domestic problems because it's easier to blame them than ourselves.
I don't think there's anything a Chinese team could do to earn trust, short of moving out of that country and reforming the business elsewhere (like how Jetbrains left Russia after Ukraine). It's really got nothing to do with the team, but two superpowers approaching a cold war.
------
With games and movies though, I guess it's not as big a deal. I still don't like that China owns so much of our entertainment sector (between Tencent owning many Western studios and much of Hollywood being Chinese owned now), but whatever, that's just entertainment.
The legal headache for a US/EU company to use a SaaS product from China would not be worth the cost and risk.
It's not about the company or teams trying to prove trustworthy.
Also, in general, Chinese products tend to be slow which is understandable if the servers are located in China.