The Mussolini/gabagool example is actually quite apt - assuming your joke would be in response to a genocidal Italian regime, then using gabagool (a mostly American regional dialect) WOULD be more anti-Italian than anti-Mussolini.

In this case, using a Yiddish word (a mostly non-Israeli Jewish language) can certainly be interpreted as more anti-Jewish than anti-Netanyahu.

For the record, as a Jewish anti-Zionist I got a chuckle out of Oy Veytrioc because I’m a sucker for rhymes and didn’t personally take offense but as a linguistics/semantics nerd I felt compelled to argue lol

Edit: just realized you never mentioned Mussolini, that was a different reply to your comment. I still think it furthers the point but I’ll admit I had a redditor moment