One question for you.
Look at an MP we are talking about. He has been fighting against antisemitism in the Labour party for a long time. They are trying to silence him. So he left the Labour party as they wouldn't let him have someone independent to investigate and allegation. Yet you haven't mentioned it once. Why not?
So you are seriously saying that he had allegations against him for something completely different because he was trying to raise awareness of anti-Semitism?
The process for dealing with claims of anti-Semitism is clear. It is dealt with by the General Secretary, not the Leader of the Party. Everyone in the party knows that. The media know that. It's clear that the previous Gen Sec was not doing this properly, and as such created a huge backlog which even now is still being dealt with.
The press have made out that anti-Semitism didn't exist prior to Corbyn. Chuka Umanna said in 2016 that he saw no evidence of anti-Semitism being a major problem in Labour. A year later it was endemic according to him.
There are clearly 3 issues that are going on:
A small amount of Labour activists/members that are anti-Semitic. They need to be removed from the Party.
A larger amount of Labour activists/members/supporters that are straying into anti-Semitism through lack of understanding and knowledge. This also would pick up those who are inadvertently making anti-Semitic comments in their defence of Palestine, and their criticism of the Israeli government and their actions. This group need educating on what they are doing wrong so that they don't do it again.
A small amount of people that use the notion of anti-Semitism as a political tool (mostly in relation to the Israel/Palestine conflict). MP Joan Ryan was filmed discussing with the Labour friends of Israel (as the chair) how she could use £1m to take down the leadership of the party and also some Tory ministers that were not sympathetic to the Israel cause. Rachel Riley has been prevalent on social media 'combatting' anti-Semitism. Yet 2 weeks ago she said on Channel 4 'I don't look like your average Jew' - Is this not the very definition of ignorant anti-Semitism??
There is a reason why we largely haven't discussed Anti-Semitism on here. It's bloody complicated, and a lot of us don't know about the complexities of the situation both here in the UK, but also in the on-going Israel/Palestine conflict.
But to go back to your original question - it's not a case of not mentioning, it's a case of not knowing a lot of detail in what is a complex situation.