They're pretty explicit in talking about the word, not the concept. Nobody here is saying antisemitism, the concept, doesn't exist or isn't important, but that the signifier less and less frequently refers to the actual concept of antisemitism.
I think you might just be arguing at cross purposes. Original post was borderline a purely linguistic observation, but you're talking about the underlying phenomenon.
They're pretty explicit in talking about the word, not the concept. Nobody here is saying antisemitism, the concept, doesn't exist or isn't important, but that the signifier less and less frequently refers to the actual concept of antisemitism.
I think you might just be arguing at cross purposes. Original post was borderline a purely linguistic observation, but you're talking about the underlying phenomenon.