"Instead of concentrating on the effect of immigrants on our society, we should be looking at the mistakes and betrayals of our administration"

Isn't that exactly what I've been saying?

One of the worst mistakes and betrayals is using such a complex issue, cynically as a tool.

Again you talk about evidence, the problem we are discussing at the moment is the rise of the BNP and there is no doubt that late New Labour immigration policy has contributed to that rise!