I have no opinion on the latter, there haven't been any movies except Bond that are in theaters and I'd like to see. You could have just referred to more specific instances of CCP censorship with regard to previous Marvel releases, because I don't follow it and it just comes across as fear-baiting rather than having substance. With respect to those things like Eternals not being released in China, and Hollywood probably wanting to court their audience, afaik it was not released there and I also don't think it looks very good, so I wouldn't necessarily attribute it to censorship because obviously it didn't work to get into that market. Every superhero oriented movie I've seen, or seen a trailer for, looks awful, but unfortunately they often do sell quite well in the North American market and make up disproportionately large amount of released movies over the last decade.
In summary, the movies I've seen that suck tend to just suck. Usually it's because they're way too long, or they don't tell a story very well, or the plot is just rehashed and contrived. James Bond was great, 1917 etc, but others just seem uninspired. To make a case that censorship is the reason, I think you'd need be annoyed with specific aspects of a production, rather than the entire thing.
I think there's an issue on the internet of people wanting to discuss somewhat contentious issues that are assumed to be followed by everyone, like CCP stuff or immigration or trans issues or whatever, but most people just don't care or aren't in that bubble, so it tend to come across as a bit sus unless you can tie it in together and make a reasonable case for it.