As several on here have said, racism is everywhere. Shazmo, kwest and a few more seem to think we have a monopoly on it?! In the USA, the last lynching was in the 60s, and the country is generally racist right now - and that's with a much greater proportion of non-Caucasians than here.
Across Europe, many countries target minorities, the substantial African or Arab minority in some Paris suburbs get looked down on and ridiculed. Hungary targeted the columns of refugees several years ago, and weren't alone. In Russia, or the Balkans if you're black, brown or gay you'll be targeted. Bulgarian football fans abused the black English players over there just a year or two ago. And that's NOW.
Go back to the Windrush period, 50s and 60s, get yourself a Tardis, and take yourself to say Italy, or Austria, and find out if blacks and other foreigners were welcomed if they came to live in the wrong neighbourhood?
People rightly blame South Africa for apartheid, but it seems to be forgotten that two warring tribes in Rwanda caused well over a million genocidal deaths (80s). I worked with a Malaysian woman, 15 years ago, and she described life back there, a complex mix of Chinese heritage, Indian and Malay, with several different faiths, Buddhist, Hindu, Muslim, etc. She said that everyone got on well together, because "everyone knew their place" -- meaning those looked down on by everyone else didn't complain too much! Like I said, racism is everywhere, has been for a very long time, and isn't going away soon. We're not that bad compared to many.