Of course you did. Leftism is currently very devoted to looking the other way about issues of antisemitism within your movement. You don't want to consider that there is a very valid reason for leftism to be rejected.

It would be very easy to denounce Hamas, and denounce attacking synagogues. Make it very clear that leftism isn't about these things. But leftists won't do that, why?

Rule on the sidebar says:

We must not be divided and conquered. Workers gain the most when they focus on unifying issues.

You're in the paradox of tolerance. If you tolerate antisemitism, then you're in an intolerant group. The goal of anti-zionist rhetoric has nothing to do with unionizing or labour rights. It's entirely about creating division and turning people against one another.

How much discussion on here is actually about unionizing and improving working conditions? I would love for there to be a community about that, since I support forming unions. But your community is mostly about bashing Jews and bashing Democrats. It's not about building coalitions with those sympathetic towards the rights of workers, it's about attacking anyone that's not onboard with one side in the propaganda surrounding a conflict on the other side of the world.

You shouldn't expect there will be broad support for a group that tolerates antisemitism. Trying to sweep the problem under the rug and pretend the problem doesn't exist isn't making it better. Attacks on synagogues continue to increase. People outside of leftist circles see the antisemitic comments by people in your group. It's also noted that there is no one in the leftist sphere that ever speaks out against it.

It's your choice whether to ban comments that bring up the issue, but that is you choosing ban discussion on a very real problem in your movement. There's a long history of people looking the other way on antisemitism that you'd be joining.