Like, oh say:
- Defending the Palestinians' right to resist occupation is apparently anti-semitism, but when Donald Trump or Viktor Orban make actual anti-semitic remarks, it's all perfectly fine.
- The Squad is evil, but when Thomas Massie (I don't agree with him on most things, but at least he has a spine, unlike the vast majority of Republicans in the House) makes surprisingly similar remarks and votes together with the Squad against the Republican resolution, somehow no Republican knows anything or will say anything about his vote or his comments.
- Elise Stefanik, best known as the spineless loser who gave up any principles she once might have had to become a Trump bootlicker, somehow gets to claim the moral high ground and attack other people for not being principled enough, without being laughed out of the room.
- Using the word 'genocide' in reference to what Israel is doing in the Gaza Strip is a terrible abuse of the word which cheapens it, but any campaign in defense of Palestinian rights that shows the slightest tolerance for them using violent means should be described as 'calling for genocide against Israel', ideally in at least every other sentence.
But yes, certainly, there are also double standards on the other side - it's absolutely true that many American and European pro-Palestinian activists hold the Israeli government to higher standards than almost any other government. The reasons behind that are a tad more complicated than just 'oh, it's because they're anti-semitic', but they're problematic nonetheless. Then there's the obscene hypocrisy of the governments of Iran, China, Russia, etc. who somehow seem to think they get to give anyone any lessons on human rights.
In the big picture on a global level, though, the most important double standards of all are those of Western governments and politicians, in the US but also in Europe, as perceived by most of the rest of the world. How restrained and measured their criticisms of Israel for the Gaza campaign are, compared to how they would treat any other country in Asia, Africa or Latin-America doing the same thing. And yeah, we could ask those people, well why aren't you complaining about your governments doing business with China or Russia then - but the point is, the US and Europe are supposed to be morally better than China or Russia, are supposed to be defending human rights everywhere, are supposed to be judged to a higher standard.
I do think you're right on this - while I no doubt have some more sympathy for the thinking behind that position than you do, I certainly have to agree it has led to a lot of bizarre and reprehensible results.
As I indicated above, this would be more convincing if Stefanik and her ilk hadn't just done their best to completely hollow out the meaning of the phrase 'calling for genocide against Israel/Israeli Jews'. But yes, it is true, sadly, that some of the activists in question are indeed so radicalized that they did praise Hamas' attacks, and many more of them use the 'from the river to the sea, Palestine will be free' line without much caring what is to become of the Israeli Jews in that scenario (though, remember, Tom said ethnic cleansing is not genocide, unless of course his definition depends on which people is being ethnically cleansed).