So for people trying to get attention, identifying as Antifa […] probably doesn’t help them these days.
People doing actions for clout are likely to be shunned as opportunistic. A well-known antifascist guide to doxxing Nazis straight up says [paraphrasing] “seeking clout will make people skeptical of your actions, just don’t do it”.
I’m partly repeating what others have replied, but when a nearby synagogue hosted a Zionist corporate event, some of the protesters alongside us were members who normally worshipped at that synagogue and felt disgusted.
And, for an extreme example of anti-Zionist Judaism, here’s some Hasidic Jews over in London, including their Rabbi, publicly burning an Israeli flag: https://www.vice.com/en/article/anti-zionist-orthodox-jews-flag-burning-protest-109/