They have entire villages where everyone has cancer and horrible tumors growing all over their bodies.
They actively test biological and chemical weapons on political prisoners.
They build entire fake cities where the walls topple if you lean on them.
Releasing a biological weapon on themselves isn't that big of a stretch, and in any case, Covid19 was made to sound dangerous by the media and the ChiCom propagandists themselves. Actual death rates aren't that bad. It's just more highly contagious than the average flu.
I stand beside my assertion that this is only a precursor to a more dangerous virus. Their ineptitude was a totally a warning. They have worse viruses and they are irresponsible in their handling. Thus is worse than intentionally releasing a virus that only kills a small percentage of the population.
The Soviets could blow up the world and so can the Chinese, yet they choose not to. They are authoritarian but they are not insane.