Yeah. My reaction to the above post was pretty
initially, but the more I thought about it, the more it annoyed me.
I mean, is pointing out a hypothetical Nazi has a Jewish background, for example, anti-Semitism? No, it's pointing out an incongruence between his ideology and his reality. Equally, pointing out a bunch of white supremacists aren't really looking like all that pure specimens of the Aryan race is not endorsing the ideology of White Supremacy, as much as it is poking fun at those who claim it without thinking through how it applies to them personally.
I'll accept I sometimes overthink things, but this strikes me as fairly obvious, right?