I'd go even further and say that people who entirely focus on rightwing idiots are grifters. I've got this feeling everytime I see some entertainer endlessly make fun of how American republicans (or any equivalent for outside of America) are stupid. Because that's too easy, and, if you're remotely on the left it's absolutely obvious that those people are beyond saving. You don't learn anything by watching mildly lefty clowns attack the ones who are so far on the right that everyone who's not a fossil fuel lord can get behind.
Only the ones who punch right on their right do actual political effort because they contribute to the pipeline that lead to revolutionary politics.
Frankly, shouldn't we abandon the whole "left-right" dichotomy? It seems false, just another obfuscation of the bourgeoisie politics. You either support the elimination of capitalism as a system (and thus class exploitation) ooor you don't. That's it. Socdems, republicans - does it matter if they all wish to retain the system as is?
Yeah you're right it's ultimately pointless when you take revolutionary politics into consideration. For example, are the anarchist on our left because they are more extreme or are they on our right because idealism is closer to bourgeois politics? That's a pointless question.
I just wanted to express the fact that some political factions are just so stupid and far from us that it doesn't make sense to spend energy criticising them. Criticism is only useful on people who share a certain ideological proximity.