Lately, there has been a lot written about the re-branding of Neo-Nazis as the alt-right, because a lot of people hate Illinois Nazis. Similarly, the term anti-semitic has negative connotations among polite people, so Jew-haters have coined a neologism, a neo-nazilogism, if you will- counter-semite. The prefix 'counter' implies defense... the new term is supposed to evoke people who don't hate Jews because of fictional, irrational reasons, but because they are opposing a worldwide Jewish plot to arglebargle why do you hate Jesus and America? As reported in the forward, the term is meant to obfuscate, to direct attention away from the purveyors of hate to an amorphous Jewish threat- it's an attempt of linguistic judo (note- I've met Ole Bischof, and he's one hell of a nice guy, and a terrific judoka), flipping the narrative in order to counter (there's that word again) the mainstream narrative that hatred of Jewish people isn't acceptable in a decent society.
It's amazing to see the constant development of an Orwellian vocabulary on the Right- a cryptolect meant to mislead outsiders and cement in-group loyalties. Given a decade or so, they'll all be speaking Ascian... and they say that it's the Left which is trying to impose Political Correctness on people.