I don't trust or believe the Chinese Communist government. Additionally the evidence is not all in. Researchers have not figured out all the details or know the source for sure.
It is easy to make these accusations. About 25 years ago I was an advisor to the US State Department prior to the negotiations of the Third Review Conference on Biological Weapons and I had also been on the advisory board of the old Office of Technology Assessment that prepared some reports for the US Congress on weapons of mass destruction. The State Department discussions were quite interesting in that there was concern about what the Russians may or may not have been doing in their labs. The Chinese research infrastructure was not a concern at that time as they were still emerging from under the yoke of Mao. There was a lot of discussion about how to conduct challenge visits of facilities that might have the capability of doing biological weapons research. The problem is how you define this as most all of the pathogens of interest for BW purposes are naturally occurring and research into drug and vaccines is fully legitimate under the treaty. There was a pharmaceutical company who I will not name that had a manufacturing facility on the site of an old stock yard. Researchers from the company took soil samples from around the perimeter and found anthrax spores which is not surprising given the use of the land prior. Did this mean that the pharmaceutical company was engaged in nefarious BW research? No, it just meant that there was a finding for which there was an easy explanation.
Wuhan has a Biosafety Level 4 research facility and there are about 15 such facilities here in the US. this is the highest containment facility around and is very sophisticated in terms of containment. There are many more Level 3 facilities around. They have good containment but not the negative pressure and 'moon suits' that BL-4 labs have. Depending on the type of research being done with SARS-CoV-2, BL -2 might be sufficient. For those who are interested:
https://www.nature.com/articles/s41684-020-0644-8 is a pretty good article on the topic.
Regardless of the political differences, I have admired the fine work being done by Chinese clinicians and researchers since the pandemic broke out. they are publishing many fine papers and doing good work in the vaccine area as well.
I do not believe that there is any kind of conspiracy here.