Shooter incident at elementary school in Uvalde, Texas - 19 children and 2 adults dead

There’s a lot of sound and fury in there
Obviously antisemitism is a millennia old problem that it’s rearing it’s ugly head again in this and other countries
Occupying and oppressing a people is also a millennia old problem

If you want to make specific antisemitic charges about those in the UK government, you are free to do so
However, muddying the pro-Palestinian waters with broad swipes of antisemitism is not helpful on either side
Here you go, you want some tangible evidence, here goes...
Here's a very good Guardian article on the controversy that came out 3 years ago before the last 2019 British general election..

http://theguardian.com/politics/2019/nov/26/antisemitism-labour-everything-you-need-to-know

http://en.m.wikipedia.org/wiki/Antisemitism_in_the_UK_Labour_Party