There is a less chances that America made and spread the virus itself, with America's stance on it right now? I don't really think they did it. There are findings made by America that the virus was not man made, giving them calm to go against China.
When the US accused China, China asked the US to be transparent about the pandemic in its country, especially the problem of zero cases. China reported to WHO on January 3, 2020, the first positive case was reported in US on January 21, 2020, but it was not clear that the patient was zero. Until now there has been no action from the US. China also explained that since the end of January the US had sent 2 experts to China to research about this epidemic, this was enough to explain that China was very open.
What do you think of the virus? A ball that can be passed easily through nations?
The fact is that the coronavirus spreads easily, like throwing an ink ball into a crowd. We assume that China did not intentionally spread the virus to the US, but the attitude of many countries who are relaxed in handling this virus, when China did the Wuhan lockdown so that the Virus entering the US is US's fault not China's fault.
A Chinese foreign ministry spokesman mentioned documents from a leaked republican party containing suggestions for candidates to refer to China's wrongdoing in the corona pandemic by cornering China which is covering up to spread globally.
Whatever happens now is relatively because of the pandemic, especially the oil price it means nothing just like your conspiracy.
This is not just a conspiracy theory, this is an analysis of defense and economic intelligence. Data without analysis does not become information, information is strategized to become knowledge, what is needed by many countries is knowledge, not raw data or information that is half-measures. In the end, it is up to each country to use the knowledge or not.