I think there's some point in exaggerating things where it changes the meaning of exaggeration. At first this cartoon seemed to me like a satire of conservatives, mocking their exaggeration by exaggerating it even more. Imo the problem with this being "right wing humor" is not that right winger actively believe what it depicts, but rather that they do not perceive how it's so enormously stupid that it even ridicules right wing ideas. (Because here, you're like "hey, leftist harassing their child like right wingers do is so absurd and implausible, haha"). Of course they could be very self-aware to the point that they could laugh at their own ideas, but i sincerely doubt there are much people able to do that in any political spectrum.