As with the Labour Party itself it depends who you listen to.
Many Jewish members of the Labour Party do not support the suspension of Jeremy Corbyn, nor do they think he, as an individual is anti semitic.
The EHRC actually found to proceedural processes that didnot deal properly with complaints of anti semitism. This is why the Labour Party is on notice to comply within (cant remember the date).
A quick google would easily find you example of how some members of the Labour Party who are Jewish think what Starmar has done is wrong. www.jewishvoiceforlabour.org.uk/statement/the-ehrc-report-an-interim-response/
Personally I dont think Jeremy Corbyn could organise himself out of a paper bag, and has spent so long being a sort of saint to some strands of the left I dont think he thinks he actually has to do anything but make emotive speeches. His response to the report (which by the way said Labour members had the right to voice individual opinions) was more about him being entranced by his own wonderfulness and propping that up, rather than saying yes we should have done more to make sure complaint procedures were not only in place but worked. (Compared to say how quickly some women got expelled.)
Many members of the Labour party and other political parties and those not in political parties do question the legitimacy of Israel and are ashamed of the treatment of the Palestinian people. And this is not just a human rights issue, but because Israel is a creation of British colonialism) ie the British who along with the French had taken over what had been lands administered by the ottoman empire then decided how they would divide up the lands to suit themselves. And they also took the opportunity to solve what was after all European anti semitism spearheaded by Nazi germany to export our failure to protect Jewish communities by telling another group of people who were not part of this, you should give up your lands because we want to export our problem onto to you. And the expansion of Israel and the occupation of Palestinian land can not be justified.
There is another thread on here about this, but this is why the IHRA was such a toxic discussion in the Labour party as many people feel it is used to stop any criticism of Israel by saying it is anti semitic to do so. And by they way, the man who wrote it also says it has been misused. And far from being an agreed international standard has only been adopted by a minority of countries.
But over and above everything, the whole issue has been massively manipulated by the main stream media, who as part of their deriding of Corbyn, created a sort of shit storm.
ie Luciana Berger was heckled by a left winger who didn't like her working with the Telegraph. which is much the same as women who heckle other feminists for working with right wing christian fundamentalists.
But there is no doubt that the Jewish women MPs had a terrible onslaught on oppose, but this was from the (male) public at large who will use any issue to attack women. Again this is where the Labour Party under Corbyn shot themselves in the foot (no cruel reference to Michael intended!). They actually had the figures showing abuse recieved by Jewish MPs and the vast majority was not from Party members. And then the 2 that were clearly from within the party they didn't deal with.
I am not trying to minimise the level of anti semitism in this country or to deny that in the same way as Muslim women suffer more overt islamaphobia, that Jewish women didn't get a terrible level of abuse.
But I think the way the main stream media have stoked the flames of this really painful situation has now made it unresolvable.
So we will not have an effective opposition in the UK at a time that we really need it. The idea that the Tories will carry on regardless of their blunders is as depressing as thinking Trump will be re-elcted next week.