I know you are trying to be balanced, but you have fallen into the same trap that many of the racists do for different reasons. You are extrapolating from an experience you have never had, applying it in a broad brush. and making asumptions that aren't reflections on real life.
Without being too outing I live in one of those pit villages, although the pit is now gone. Not a million miles down the road a bunch of fascists tried to burn down a hotel with asylum seekers inside it just last year. About 700 people were outside that hotel - some locals yes, but also many "imported" professional fascists.
My village has about 6,000 residents - we have an active support group for asylum seekers who live in our village. We have always had people of different ethnicities in the village - many were miners or miners families. We still have a mix of ethnicities in the village. As asylum seekers get asylum (so far every single applicant has been given asylum) almost every single one of them has decided to settle here in this village because it is a nice place to live where they have British friends and are able to feel safe and settled. We have others who are first and secnd generation immigrants from other countries too - everything from doctors to the local kebab shop.
Do we have bigots and racists, yes, of course we do. It has nothing at all to do with community, or culture, or tradition. It has to do that these people get off on controlling and dominating others, on bullying and on being bigots. If the community was all white, they would still find someone to attack, because they are cowards who can only thrive when they have someone to blame for their own inadequacies. One thing you will quickly find out, however, is that often the village knows them - as in they are extended multi-generational families who have never brought anything positive to the community.
Some smaller communities may have more to learn about their new neighbours than some of the cities, but that doesn't mean they are scared or challenged by change.
And BTW - there are dozens of small former mining communities here and almost every single one of them has a support group for asylum seekers. Miners remember lots of things, and one of the things they remember is how many communities stood with them against injustice. Many think they owe a continued commitment to justice and equality.