The odd thing is that Jews, both American and Israeli, don’t counterattack with speech. And they could, quite effectively.
To start with, those people most caught up in antisemitism have never themselves ever even *met* a Jew, in person. So Jews, to them, are imaginary creatures. And this is important: Jews to them are so dehumanized, that they are mythical, *or* even magical.
During the Cold War, the Soviets propagandized the rest of the world that the CIA were *everywhere*, spying on *everything*, and utterly ruthless. Oddly enough, this both saved the CIA a lot of work, and prevented much mischief around the world, because the CIA was seen as omnipotent and omniscient. Many of the potential troublemakers were so afraid of the CIA that they never made trouble.
So how could this be used to effect by both Jews and Israelis?
To start with, many of the antisemites are impressively ignorant and deeply superstitious. So if they think that Jews are “magical”, they are vulnerable to “Jewish magic”.
A neat thing about magic is that it is unlimited. “Jewish magic” might be able to turn non-Jews into Jews, or make the male organ of non-Jews stop working, give them hemorrhoids, make them homosexual, force them to eat pork, you name it.
And because they have never seen a Jew, there might be “secret Jews” amongst them, pretending to be someone else, like an Imam or a political leader.
As you can imagine, the possibilities here are endless.
The same is true for most here who express hatred for Moslems