Not everything which is not perfectly proven is a conspiracy theory. Or at least there's levels of implausibility. The US has messed with elections and governme

Not everything which is not perfectly proven is a conspiracy theory. Or at least there's levels of implausibility. The US has messed with elections and governments in many countries including through direct military intervention so belief that another country would likewise do to some extent isn't that unimaginable. On the other hand so far there's no evidence of some group of elites previously causing massive global events with hard to predict consequences and plenty of evidence of prior disease spreading (SARs, etc.). Claiming that certain subsets of elites secretly work together to benefit themselves is, for example, a more plausible scenario in that same vein and there's plenty of historical precedent for these sorts of collusions.