>He is saying I am either a troll or a pawn.

I didn't interpret that comment the same way at all.

I think the gist of it can be summed up by (purportedly) Winston Churchill:

"A fanatic is one who can't change his mind and won't change the subject."

If, as you suggest, you're using a semi-throwaway account specifically to discuss COVID, unless other folks know that, your posting history with this account would likely give that impression.