" The far left have a serious issue with anti-semitism " Who exactly inhabits this "far left" ? Don't forget you don't have to go very far to the Right to encounter it, and Islamophobia too !
I am glad that you seem Cofty, to have a grasp of what anti-semitism really is, as you say, it is a contempt for Jews, and sometimes even hatred.
So many people conflate a total abhorrance for what the Israeli Government have done, with anti-semitism, which it is not. ( Although of course, anti-semites will loudly criticise Israel). We are in real danger of losing our freedom to call the Isreali Government to account if we allow Dame Hodge and others to get away with such nonsense.
As SBF says above, actual examples of anti-semitism from full Labour members are hard to find, and if they occur I would expect the party to react swiftly, your repeating of the Mural incident about Corbyn is not helpful, you cannot know if he did actually study it before giving approval. Not that I am here to defend the guy particularly, but he has been consistent throughout his political life as an anti racist, on many issues being one of very few politicians to speak out.
The anti-semitism smears against the Labour Party seem motivated more by a desire to keep it out of Government, than any search for truth.
Of course racism of any kind is to be stamped upon wherever we find it, for the its absolute ignorant stupidity and the harmful murderous things that happen because of it.