As a working class Englishman with, I hope, an open mind I am willing to give everyone the benefit of the doubt and a fair hearing...
I will converse with anyone and be prepared to like them and if either of my daughters had dated black or brown guys (or blue or green or any colour) I would have supported their choices.
Apart from my natural curiosity and keenness to learn I see it as my Englishman's duty to be inclusive and accepting, especially as those who are born here have the right to be treated and respected also as English, irrespective of the colour of their skins...
Prejudice of any sort is really a manifestation of very bad manners...
Unfortunately, most of our immigrant residents and citizens and many of their offspring are not so open-minded and inclusive and have few inhibitions about displaying the sort of bad manners I refer to as they seek to maintain home-country cultures and customs, alien religious practices and family values - some of which are positively medieval!
The Muslim community seems to be the worst offender - most of the news stories indicate the possibility of serious and violent repercussions against "mixed" dating...
Most of the immigrant populations here display varying levels of anti-social and uncommunicative behaviour, prejudice, anger, frustration or suspicion towards their English hosts or co-citizens. This is something, the understanding of which, defeats me and is quite franky something that feels like a personal insult...
The sooner someone passes a law making it mandatory to only date and to breed with other colours and cultures, the better it will be...