Your theory seems very plausible, and might even be true to some extent. I wouldn't be surprised at all if a war breaks through once this is all over. But I don't expect EU and other countries with moderate military equipment to keep quiet either. Russia may side with China, others won't. I really hope it doesn't get to this. Creating a pandemic to defeat a military strong nations seems to be a vert genius tactic, and so far its working out extremely well for China.
Hard to tell what the view will be these days in Southeast Asia, where China has become less of threat than of ally in past two decades -- communism no longer the easy sway word as it was in the 1970s, just as Japan is no longer the evil marauder of the 1940s. I don't have a keen knowledge of the politics now but a lot of people in that part of the world would see China as the lesser evil and side with them.
I think most of us are sharing the same plight as you are. Scared of losing our jobs, scared of not being able to feed our families and ourselves. And given up on our governments to do anything for us, and even if they do, it won't be suffice enough. I mean, we can get loans, find new temp part time jobs, do trading all that shit, but that will only help so much. This pandemic needs to end soon, and every single government should provide like a stimulus to its citizens every now and then, the US has had a record breaking layoffs throughout history and its just beginning. If countries don't do something, their economies will be dwindling and soon there will barely be any economy to rule over.
At least those like us are a bit more resourceful than others. We can look for ways, we are educated (if not qualified), and we have means to find something else. I think most countries will do something, but surviving is no way to live, as it is most people really were just living day to day.