
You put it better than I myself had formulated it in my head yet, why I am weary of those rumours. I find similar arguments here in Europe, where our fascist movements, which are without a doubt supported by Russia, are then sometimes reduced to being some sort of wholly foreign influence, instead of admitting that Russia is stoking flames in embers that had always been part of us and the problems we face.
While this is very funny, and definitely representative of a sort of ignorance/arrogance commonly found in ideologues - I recently learned that most people talking about the effect have, in fact, been Dunning-Krugering themselves.
Insightful video on the topic.
What most people expect the effect to look like:

What the actual results were:
