If you quote a haterag, people are going to take issue with that.
Don't take pro-Israel partisans at face value. You think a source is legitimate because it quotes someone who was given a peerage after helping to bring down the former leader of the governing party? Because it quotes a pro-Israel campaign group?
I don't know if that screenshot is real. Assuming it is, a handful of members in one group in one local party are expressing views that can be interpreted as antisemitic. Ok. I hope that appropriate action is taken. It's hardly evidence of your horseshoe theory horseshit.