What I have seen is a confusion (perhaps intentional) between anti-semitism, and protesting Israel’s behavior since the Hamas attack in October.
Criticizing Israel’s response is not anti-Semitism- it is literally just criticizing the response.
Okay - then what should be Israel's response? For me what they are doing is the bare minimum with the minimum casualties from the options they have. Hamas is Gaza's government. Hamas has intertwined the civilian and the military infrastructure. Hamas has made sure that the civilian Palestinians will suffer if you target Hamas. And it was Hamas that made sure with organized rape, torture and atrocities on Oct 7 that it can't be overlooked or forgiven.
Here is a good rule of thumb - if you are going to stir shit - stick to just killing. Don't livestream torture and rape, so diplomacy will have something to work with.
The same response I have concluded should have been the US' response to 9/11: turn the other cheek, and invest heavily in reconciling with "enemy" forces while rebuilding "enemy" infrastructure and institutions, while dealing with individual bad actors on a case-by-case basis as a matter of legal (rather than martial) procedure.
And I'm not joking.
I feel bad for Israelis who have let their government doom them to a generation of government mismanagement and expensive, arduous military adventure. My single-payer health insurance and my friends' free college education went into a couple Patriot missiles, and I do wonder what they're going to have to give up.
Here’s the passage from Matthew 5:38-39 KJV:
“38 Ye have heard that it hath been said, An eye for an eye, and a tooth for a tooth:
39 But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.”
What Jesus is advocating is nonviolent resistance, not walking away. MLK Jr. understood this passage well.
Good thing I'm not one of them. The point is that the way to resist effectively is to not let yourself be drawn into a quagmire or an opportunity to show the world your ass (which is what Israel and the US have done). Responding with the intent to do good works (which you will admittedly fall short of, because you're human, landing you somewhere at least justifiable) is better than responding with the intent to wipe out the opposition, indiscriminately and by any means necessary, and accidentally committing a form of genocide. (Note: we (Americans) did that too. The fire next time, and I hate it.)