If you want a conspiracy, let's get creative. Note - I don't believe this but in the spirit of doing it right, here goes.
Angered over being criticized by the Obama administration, Putin sought revenge against the US by working with numerous Russian agencies to craft a disinformation campaign that would roll out during the 2016 election and assist the worst possible candidate in their bid for the office of President. It was a roaring success which caused years of internal conflict.
He began work immediately with Chinese scientists developing a bio-weapon that would not only disrupt and possibly cancel the 2020 American Presidential election and further his interests abroad, but offer justification for promoting an extension of his term as President, strengthening his position domestically.
With all opposition bewildered into fighting over toilet paper, Putin begins annexing Russia's neighbors.
Yeah, I know. But be creative. It's not a person in a mask.