I agree, which is why it's important to realize that the means for the US administration to cause this are very remote, and the potential benefits of this situation (particularly on the elections as you mention) are even more obscure.
I'm not saying the US hasn't done its fair share of shady and immoral operations, probably more than any other country in the world, but the scenario you propose is more akin to a Rube Goldberg machine than any realistic covert operation.
Your lack of belief in how covert operations work shows a lack of history. I obviously have no secret knowledge about his, but even reading one or two historical accounts about intelligence services (and others) would prove you wrong
Your hypothetical is not based in reality.
2020 with COVID was far worse than something that's still literally thousands of miles from the US and we still held elections in the US. Midterm elections have already started, so even if this was some bizarre CIA plot, it'd be the least effective way to achieve their goals. They failed before they began because, again, the elections are already happening.
I'm not sure if I'm demonstrating a lack of belief in how covert operations work (whatever that means), but you sure are demonstrating a lack of common sense about what covert operations are even possible.
You don't think there's an easier way of manipulating domestic elections than sneaking into a hostile country across the world and infecting a random scientist with the plague?
You still haven't given any historical example of such an operation (unless you're suggesting the Japanese planned to spread plague in the US during WWII in order to influence domestic Japanese politics. That'd probably be a less ridiculous story then whatever you're actually claiming though). Maybe instead you can try to answer how exactly this advances the claimed goal, how you even suppose they practically did it, and why there was no simpler method of achieving the goal?
Another commenter pointed out that we had elections during covid, but that was several months after the initial onset, and after shelter-in-place orders were lifted. It is true that it took three weeks from the first reported case in China until we had the first reported case in the US, and then another eight weeks until the first lockdowns. It would have to be an accelerated timeline for the US to use it as a pretext to stop elections, but we are also much more sensitive to the threat of respiratory pandemics, having just gone through the first one in living history. If a US case is reported within the next three weeks, it is possible that it could be used as a pretext; especially because it would benefit the group who last time were the biggest opponents of the lockdowns.
But once again, I am not arguing for this. I am only explaining my hypothetical: if this is used as a pretext to disrupt the elections, I will assume it was intentional (until proven otherwise).
I'd suggest you focus on actual crimes committed by the US government right now today, such as the Epstein coverup, the war in Iran, the genocide in Palestine, etc. etc. instead of making up nonsensical hypotheticals.