Hmm, why do people focus so much on Israel when basically every other country in the region is just as bad, or worse? Is there something about Israel that's different from those other countries? I wonder what it could be!
Well, no. The vast majority of Israeli Jews are MENA, they're not white. They're basically there because they got pogromed from the rest of the Middle East and North Africa in the middle of last century. While a lot of their leaders are of European descent and there's discrimination within Israel against some people who are darker, the actual racial composition of Israel Jews is about half part-European and two-thirds being MENA, the crossover being due to intermarriage.
Do you have the same level of hatred for "Israeli bourgeoisie" as you have for Lebanese, Syrian, Egyptian, or Turkish bourgeoisie? Because if your first thought is "death to Israel" instead of "what helps workers" then maybe you might wanna reconsider your position, lol.
I don't think anyone is saying Israel is explicitly good, merely that it's *completely the same as any other state in the region* and pretending it's especially "bad" and weirdly focusing on it is a big part of that anti-semitism that needs to be called out.
Immediately assuming "have a nuanced and historically accurate understanding of the middle east" must necessarily mean being pro-Israel probably says more about you than it does everyone else, hey.
tl;dr:
The difference between anti-zionism and anti-semitism can be understood by applying the "three Ds" test.
1): Delegitimisation. Does someone say that Israel has no right to exist, but doesn't make the same distinction of other nations created in similar circumstances, such as other Middle Eastern nations formed out of the former Ottoman Empire?
2): Demonization. Does someone's criticism of Israel present it as a uniquely bloodthirsty, evil, racist and imperialist state, despite the same things being equally or better applied to other countries in the region?
3): Double Standards. Does someone assume Israel is especially unique in it's badness, when it is really the rule rather than the exception? Anti-semitism selectively ignores that every state in existence today is equally “artificial,” and that all have been accompanied by violence, dispossession, and exclusion. Rather than a radical left critique, this is a liberal exceptionalist narrative which can only rest on a historical double standard.
It is clear that there is room to critique zionism, or even take a stance that is anti-zionist, without falling prey to anti-semitic narratives. Leftists, of all stripes, must make stringent efforts to ensure that criticisms of the Israel state do not incorporate any of those three points. It's not rocket surgery.