Look at the birth rates of the immigrants versus the native population of Britain, especially muslims. Think about the cumulative effect of this over the generations.
If Britain maintains its current course, then the local British need to assimilate with the immigrants, not vice versa. If Britain won't defend its culture and enforce its borders, then they are the ones who need to adapt. Current british culture will be an obscure faded memory. The new culture will be gang rape, sharia, and amputations in stadiums. I'm sure your daughters will love wearing a burka.
LOL this has been proved to be rubbish.
Muslim population is about 3% at most.
And those born here tend to have the same size families as the local population.
I saw this same sort of thing when the West Indians came over, that they would out breed us by today