Surfer any time anyone calls to limit immigration, they are always derided as racist. As an island, we will always need a certain amount of immigration - but as an island, also, we cannot sustain uncontrolled immigration with our current levels of services and taxation.
I am very happy to have immigrants - but those who subscribe broadly to our way of life and goals: there was a recent thing on BBC 3 where a young British Asian man was talking about growing up in a home in London where Britain was seen as an enemy, and the 'umma was seen as more important than anything else. We should be able to talk about these things in a mature and sensible way, without the kneejerk cries of "racism": it's really sub-optimal, for example, to have parallel legal systems, whether that's for Islamic or Jewish family law, where in both cases, the more extreme interpretations will send a woman back to her violent husband if he speaks up in favour of preserving the home above divorce. We need to be having these discussions openly, and at the same time, the kneejerk liberals should not use the accusation of racism to shut down legitimate and open debate.
Extremism, whether leftist or rightist, is deeply distasteful and unacceptable, and we need to be able to speak openly to challenge all form of intolerance, not just the ones that don't conform to our liberal interpretations.