Well, if China did want to make a virus that was harmfull to the USA and make it look like a natural thing, do you think they would want to have zero cases themselves? What do you think you would think about the wu flu if the only country that did not get the wu flu was China? Would you not suspect that they might have known about it before it got out there. For all you know they did not have any cases of it and it was all for media consumption. Or perhaps they did release it on there own people, then used the police state to keep it in check. Do you think the communist leaders of china actually care about a small percentage of there people dying, especially when they have something to gain?
But on the other hand, does China actually benefit from this virus? It has down sides for them. Here in the states they have a 50 year high of 'anti-china' headlines. People who were hardcore free trade libertarian or liberals are now saying that trade with china might not be to our advantage. So does the bad press outweigh the economic short term damage to the USA? For all we know this might bring back jobs to America.
I could go on about varies logic behind reasons pro and con for any country to create such a virus, but it is to no use. People who agree with you are going to agree with you. The person of logic does not need a post from me, to see the two logical fallacies you used in your post.y