In order to divert the discussion away from the injustices of the occupation, the Israeli government now defines any person or organization who criticizes their policies as an anti-Semite.
While the word was coined by a racist German it never made any sense considering it is just adding anti to semitism.
It reminds me of a person who would misclassify what Antifa means to support government censorship.
You are right, language is interesting. Personally, I don't use propaganda from oppressive regimes, but to each their own.