Antifa, in a certain historical context, meant a specific movement of Communists.
Libertarianism, in a certain historical context, meant a specific movement of socialist-anarchists.
I do historical linguistics for fun. Let me tell you about semantic drift: If words only had the meanings they had once, then it would be reasonable in English to say
A deer climbed a peach tree and ate an apple. It was unhappy, and so because the meat it ate was poisoned, it starved.
Because if you go back far enough, “deer” < dyr meant “an animal”, “apple” < æppel meant “a fruit”, “unhappy” < hap meant “unlucky”, “meat” < mēt meant “food”, and “starve” < steorfan meant “to die”.
Words do, in fact mean things. Words don’t always mean what they used to mean. That’s how language works. And history.
Notwithstanding the efforts of the likes of l’Académie française, language doesn’t work by fiat.
And you, sir, are no Académie française.
