It is perfectly natural for people to want to look after their own. Currently we are ruled by rather left wing, social worker type agendas but if we look more towards other disciplines, like anthropology different points of view emerge. Our preceived wisdom at the moment is that we can all integrate which would be lovely.
I lived in North Wales for 10 years 1987 onwards and was treated like an interloper, fair enough, no one invited me there, we moved house once to avoid a neighbour who thought we should not be encouraged to settle. It was uncomfortable at times but understandable. My son still lives there with his 4 fabulous daughters having done a lttle integration of his own.
We could not insure the cottage unless we lived there full time and so moved on the very day that my daughter was born, in fact she was deliered at Ysbyty Gwynedd.
I grew up in post war Peckham, with plenty of new neighbours from the Commonwealth, who were shabbily treated, not by my family, dad was a jazz muscian and music seems to bridge all barriers.
When I was a youth worker in the late 70's and 80s in London the African people and Carribean people did not get on, although the riots were perceived as a white/ black issue.
Racism is far, far more complex than statistics alone can deal with.
It takes time for people to assimilate and maybe they don't want to. That is fine too. How we cope with that when we are a small island and people don't have much space or a surfeit of opportunities remains to be seen, and seen the world over.
People will gravitate towards wherever they think they can do better for themselves, poor economic migrants come here for the money to be made, sadly gang type enterprisess make the most money, quickly. However, in Wales the language was used to prevent people having local jobs, Welsh speakers only policy, which resulted in some bizarre appointments..a hairdresser in a senior social work post because she spoke Welsh and other applicants didn't.
There are always little attempts at social engineering, all pefectly natural, why shouldn't people protect what matters to them?
The tragedy in Croydon, who knows what that was about? We can't just assume racism or any other ism. There are undercurrents that only the people who love locally may be aware of.
Since BREXIT I have been told more than once that as an 'old person I should be dead so I don't need a pension.........can't see people taking to the streets about ageism, or fatism (guilty of that too) consider carefully how we are all being manipulated, why have these categories sprung up? Is a racist murder any different to any other murder? I don't believe it is.