

I don’t think it was ever anything concrete. Some members of the Labour Party made some comments that could potentially have been interpreted as being anti-semitic. Everyone went absolutely crazy, without anything in the way of evidence, and it caused a major political scandal. Labour themselves made the whole situation infinitely worse by not properly investigating the allegations, which made it look like they were trying to protect people. In reality I think it was just incompetence.
It was the very definition of a storm in a teacup, essentially nothing had happened but the opposition parties reacted as if it was some major scandal for the sole purpose of political point scoring.
Labour subsequently lost the 2019 elections and the suggestion was it was because of this scandal.
So when Starmer became leader one of the things he said he was going to do was root out anti-Semitism within the party (no matter how much he had to dig for it), this was around 2020 but he had been campaigning about it since around 2018. Anyway when he became leader there was a big bust up where he got rid of anyone he thought was being anti-semitic (again there was a lot of doubt about whether or not they were being). Then in 2024 they won the election. So ever since then they’ve been very careful to not appear anti-semitic to the point at which they are refusing to even acknowledge Israel’s war crimes.
This is all especially annoying since they would have won the 2024 general election no matter what because the Conservatives were polling so badly. So this big arguement about anti-Semitism was completely unnecessary. Had it not happened Labour would still be in power, but would be less inclined to shy away from criticism of Israel.
TLDR
Accusing Labour of been anti-semitic has been the default position of the opposition for a while because it works. Who cares about the truth anymore?
What does the UK military have to do with a private company sending weapons to Israel? All the protesters are asking for is the weapon companies not to be allowed to send weapons from Israel from UK soil, I’m sure they would just send them from the US but at least it’s a stance.
The UK military isn’t doing anything in Israel so they are weird target