You've never met a pro-zionism liberal? It seems to be the norm among them.

I think it's important to differentiate here between non-participant liberals and the participant liberals. Or "the masses" and the active political agitators. The liberals who are ideologically active true believers participating to push liberalism are all pro-zionist barring none. The general masses I agree are mostly indifferent or anti zionist.

Personally think it's probably beneficial to the left to split from liberals on all things. It's getting harder and harder to be in any form of non-ideological coalition with them, they can't help but bat for imperialism. In an issue like this it's explicitly harmful to the marginalised people they're supposed to be holding as priority as well. My take is that the community needs a suite of explicitly leftist communities. These will reinvigorate some radicalism in the lgbt community that has dissipated due to liberal assimilation. The biggest issue with assimilation has been that it creates complacency and reduces the number of radicals as people see governments running pride parades and companies supporting lgbt people they see it as "won". These companies and governments take over the role of organising and then when they stop doing it there are no organisers, because they were assimilated. The community then has no skilled radicals to continue it themselves so the lgbt community takes Ls on many fronts with no skilled organisers doing pushback.

Keep in mind I'm in Britain so my perspective is heavily coloured by my locality. I don't know if things are drastically different in the states, I get the impression that they are a bit different in some ways.