American Race-baiting and Middle Eastern Jew-baiting

Sar Shalom
In 1981, RNC committeeman gave an interview describing the evolution of race-based appeals in which he said:

You start out in 1954 by saying, “Nigger, nigger, nigger.” By 1968 you can't say “nigger” — that hurts you. Backfires. So you say stuff like forced busing, states' rights and all that stuff. You're getting so abstract now [that] you're talking about cutting taxes, and all these things you're talking about are totally economic things and a byproduct of them is [that] blacks get hurt worse than whites. And subconsciously maybe that is part of it. I'm not saying that. But I'm saying that if it is getting that abstract, and that coded, that we are doing away with the racial problem one way or the other. You follow me — because obviously sitting around saying, “We want to cut this,” is much more abstract than even the busing thing, and a hell of a lot more abstract than “Nigger, nigger.”

A similar process happened in the anti-Israel appeals for support. From the start of the Palestinian national movement in the 1920's at least until the riots following the UN Partition vote, the refrain of those opposing the rise of Israel was

Filastin bladna
W'al yahud klabna

In English,

Palestine is our land
and the Jew is our dog

By the 1960's, the Arabs started to recognize that explicit expressions of Jew-hatred were counterproductive. So they started making appeals based on addressing the Palestinians' dispossession. By the 21st century, the message morphed again into saying that all that is needed is enforcement of international law. Essentially, calling for adherence to international law is more abstract than calling for alleviation of the Palestinians' "dispossession" which is more abstract than calling the Jews dogs.
Why is it that the Left can easily recognize the Right's racially coded dog-whistles beneath the facade of neutral sounding language, but see nothing wrong when the Arabs' advocates use the same tactic of dog-whistle appeals to Jew-hatred couched in the noble language of international law? That is what we need to call them out on.