The basic problem is the immigration policy Britain has had,under governments of all stripes for the last 40+ years,allowing half of Pakistan and half of India's moslems to settle in Britain.
IOW,the problem is that at least 40 years ago Britain's political class decided that all cultures are equal.
So, so close. Here's the deal: elites control over 90% of global wealth. In the UK, the aristocracy has owned practically the entire island since 1066. In this context, they manage the country in the same manner as a farmer manages his herd ie the more head of cattle under management, the richer the farmer.
The British upper class who own all the property could hardly give a sh!t who the actual tenants are, as long as rental rates continue to increase. That's why massive immigration from the former colonies is so widely supported: the upper classes control media, finance & government, so what's good for them - via increased pressure on real estate prices - is instituted as policy.
I'm sure they more than fully recognize what they've done and who they've imported. To them, lower & middle class English culture is low-brow, so yeah, all cultures are equal in that sense.
It's the same thing with illegal immigration in the US. Which area of the US has not experienced real estate appreciation? Which areas where people who have enjoyed large equity gains not also enjoy hiring cheap, acquiescent nannies, gardeners and construction laborers?
This is the globalist, leftist sales pitch. Enjoy life now, since you won't be around to reap the bitter grapes in another generation or two.