It is not really about anti-Semitism. It is mostly about stifling criticism of Israel

https://www.theguardian.com/politics/2018/apr/03/jeremy-corbyn-called-irresponsible-after-attending-radical-jewish-event

Jeremy Corbyn criticised for attending radical Jewish event.

For some weeks now, there has been a strong suspicion that there is an "agenda" behind the relentless campaign against the Labour party and Jeremy Corbyn in particular, with stories and "revelations" being reported on a daily basis, of some new twist on the anti-Semitism allegations in the media and on television as well as those emerging from some MP's. The "agenda" has today revealed one, perhaps the main motivation for this insidious campaign.

Paul De Laire Staines

The publication of a story in "Guido Fawkes" an extreme right wing Blog published by Paul De Laire Staines and which bears more resemblance to another gutter press newspaper rag than to a publication apparently claiming to be a serious political forum, reports the attendance by Jeremy Corbyn at a Seda, (a ritual feast that marks the beginning of the Jewish holiday Passover) hosted by Jewdas, a Jewish left wing political group. How Guido Fawkes, the media, a few disgruntled MP's and television can suggest that Jeremy Corbyn's attendance at this function is somehow anti-Semitic, is a mystery which only those who have their own reasons for the ferocious campaign being waged every day in the media and in the "briefings" given to the ravenous press.

There is however, an indication of at least one of the motivations driving the present barrage of hostility towards Corbyn and the Labour party. Jewdas is a left wing Jewish political group with declared opposition to mainstream Jewish organisations such as the Board of Deputies of British Jews, the Jewish Leadership Council, and amongst other mainstream organisations, Jewdas is opposed to the present Israeli government, and opposes Israeli policy in the occupied territories of Palestine and in Gaza. Guido Fawkes mentions opposition to the Israeli government but the media, television and the few MP's go to great lengths to emphasise and stress that opposition, whilst the BBC fails even to mention that Jewdas is an organisation with an overwhelming Jewish membership. Therein lies a strong indication to explain the animosity of the media, television and a handful of MP's. This current campaign against the Labour Party has little to do with anti-Semitism. It is acknowledged that there are a small number of individuals within the party who behave in a manner which can be described as anti Semitic, but the leadership generally and Jeremy Corbyn in particular, have roundly condemned such behaviour and on numerous occasions have stressed that that anti-Semitism has no place in the Labour party and will not be tolerated. It is difficult, if not impossible to understand how attendance at a ritual Passover feast organised by and in the company of other Jews can even remotely be described as Anti Semitic. Impossible that is unless the critics in media, television and those MP's who have their own agenda, will try to convince the public that criticism of Israel with its government is itself anti semitic. This proposition is of course arrant nonsense.

The present campaign being waged against the Labour party and its leadership, is essentially about Great Britain protecting Israel from any criticism or possibility of censure in the UK for its actions, in much the same way as the American Veto is used with such abandon at the United Nations as it has been since 1948. It is an attempt to stifle debate on Israeli policy and on its actions towards its neighbours. The British public must be made aware of the "hidden agenda", being peddled by media television and some MP's, and forewarned that criticism of Israel is not antis emetic despite the attempts of others to convince us to the contrary.