Fair. All of the big ones have some level of filters. In the US it's not regulated so the censorship/filtering is determined by the company providing the service. Those companies have business relations in both countries. I'm unsure the extent or how much any Chinese company might have with American business. In any case, both have the capability to collect your data and I'm of the opinion they do despite any claims of privacy. Furthermore, there's no tech company as large as these players without government funding via contracts.
Using AI is at a bare minimum as insecure as using Google/Bing search pre-AI era. Again my opinion is that it's dangerously less so, whether Chinese or American.
To that extent i personally can't imagine why China having your data is less secure than the US unless you're in a position of political importance to the US (government office/job/contractor) or running a large business with the capability to influence the US government through lobbying/media/etc...
FWIW I personally avoid AI in every way i know how to.
Just so i'm not called a tankie, I don't trust the CCP for anything other than cheap exploitative labor.
I learned a whole new hatred for people who don't follow Leave No Trace principals and fail to dig a latrine/cat hole.