No, I'm teasing you for your engagement in the term "Antifa" as a political boogeyman.
That changes exactly none of the meaning of the analogy, so... how is it weird? I was referring to the underlying principle of refuting a word's weight in an attempt to downplay its applicability, not the meaning of the comparative word.
Sorry you don't believe our understanding of social theory hasn't advanced in the last 100 (or even 20) years, but again: I was referring to the principle, not the word.
That's because it's not empirical. In this context, it's not something you need to defend against -- it's an opinion formed by observation. I don't give a shit what anyone's implicit biases are, but we point them out to one another so that we have an opportunity to be more cognizant of them. If you feel that I'm biased against conservatives, that's something for me to be receptive to and examine critically, which I have done and will continue to do; it doesn't make you inherently right or wrong, and it doesn't mean that I have to change my mind based on your opinion... or vice versa.
This is exactly why echo chambers are bad, because they limit our exposure to conflicting viewpoints and increase our susceptibility to dogmatic indoctrination, and thus, make other viewpoints seem disproportionately alien and monstrous when we are exposed to them.
That's a wild correlation, but sure. All you did was list four things, one of which is absolutely applicable... I would hardly call that grounds for rendering a word meaningless. Sure, the left's usage or over-usage of the word is debatable (and I would probably even agree with you, in some instances), but that doesn't render the word without inherent meaning.
Calling someone an ideologue doesn't make them a believer in that ideology, but doing or saying things strongly associated with that ideology does lend itself to causing others to create an association.