Losing support of anti-Semites? BOO FREAKIN HOO! Just because Lawrence of Arabia took it up the butt from Arabs doesn’t mean Israel has to. Go to Hades, Hague - and worry about the Muslim swine beheading Britons on your very streets!
The British people are not antisemites and never have been, in fact the UK is one of the few European nations that has rejected (from the 1920’s and 30’s to today) anti-semitism and fascism. The anti-israel mob in the UK are a minority of loud bigots who make themselves heard, but they dont speak for me or for most British people.
And even IF people in the UK criticise Israeli policy, its a lazy argument to equate criticism of Israel with antisemitism. By that logic, the fact I think Obama is utterly useless means I am a racist. Or anti-american.