People are too simple and reactionary. In times of war, the temptation grows, the temptation to construct a barbaric other. Grifters know this and ramp up their antisemitism. MTG is just the canary in the reactionary coal mine, but mark my words you will see a flood of antisemites who will be taking Likud's acts of aggression as confirmation of the validity of their antisemitic beliefs. The exact same way reactionaries took newsreels from the Middle East and acts of terror worldwide as confirmation of the validity of their Islamophobia (which, unlike antisemitism, the mainstream media had no problem with signal boosting).
As much as we try to fight the conflation between Zionism and Judiaism, there's only so much that can be done against the fact that most people are fucking morons and prefer reductive explanations and can't be bothered to distinguish between genocidal maniacs and ordinary Jews. Roger Waters unfortunately is too erudite for mainstream audiences. His take on NATO, while overall a good take, failed to properly account for ordinary people's intolerance for military invasions and it came off as too supportive of Russia's invasion of Ukraine which made him look crazy.
If the US right-wing is first to abandon Israel, they will overperform in the midterms. Democrats need to ban AIPAC yesterday if they are serious about fighting fascism at home.