I did and it makes a ton of assumption such as the idea that all of the research was done there. Furthermore, we know those a bioweapon labs because some of them are left over from USSR days.

As I've noted in my comment, US could easily dispel all allegations by answering a few simple questions and allowing international inspection. I simply can't think of any reason not to do that.

Meanwhile, western resolve around sanctions is going to be weakened by western economies crashing, no need to create conspiracy theories for that. The people in the west don't seem to understand the seriousness of the economic blow back they're facing.