I don't think China is evil incarnate, but I do know that it is confirmed that they have performed GOF research (
https://www.newsweek.com/controversial-wuhan-lab-experiments...), that there were reports in 2018 that they were not following proper lab safety practices (
https://www.businessinsider.com/us-officials-raised-alarms-a...), and that the Chinese military was engaged in secret experimentation.
This is all circumstantial, of course. But, that combined with the fact that COVID originated in Wuhan, thousands of kilometers away from the bat caves of Yunnan province, yet in the same city as the only BSL-4 laboratory in China, that's hard to ignore.