Russia is a terrible threat to the US. How much/many of their disinformation and memes (in the traditional sense) are correlated with disrupted political disco

Russia is a terrible threat to the US. How much/many of their disinformation and memes (in the traditional sense) are correlated with disrupted political discourse, extremism, and disunity in the US? They don't sponsor squads of disinfo/misinfo actors just for giggles. It has a profound destabilizing bang for their buck.