Our tolerance is part of what makes Britain, Britain. So conform to it; or don't come here. We don't want the hate-mongers, whatever their race, religion or creed. If you come here lawfully, we welcome you. If you are permitted to stay here permanently, you become an equal member of our community and become one of us. Then you, and all of us, who want to, can worship God in our own way, take pride in our different cultures after our own fashion, respect our distinctive histories according to our own traditions; but do so within a shared space of shared values in which we take no less pride and show no less respect.
The right to be different. The duty to integrate. That is what being British means. And neither racists nor extremists should be allowed to destroy it.
hat tip: Rush Limbaugh