AOG
// couldn't this rise in anti-Semitism be down to the rise of Islam in the UK? //
Firstly, I am doubtful there has been any significant rise in anti-semiticism in the UK. And the numbers don't add up. Muslims don't make up anywhere near half of the UK. If there has been a significant rise so that half of the UK is anti-Semitic, it must be the 90% majority who are not muslim, that is responsible for the rise. But I don't believe it.
If I do hear attacks on Jews, it is usually from football fans. The same football fans who are also aligned with far right parties like the BNP. But again, they have not significantly increased (the opposite in fact), so again, any increase cannot be put down to them.
There has certainly been a change in perception of Israel being a friendly State. The wars in Gaza, the attack on the flotilla, the treatment of the Palestinians does not go down well with younger people. Israel, the State, has rather shot istself in the foot by its aggressive foreign Policy and its disregard for what anyone else thinks of them.
So in summary, I do not think anti-Semiticism has increased, but I think Israel the State has suffered a Public Relations disaster over the last 10 years.