Blinkowl
In London we lived in an area with people from all over the world, where it was rare to hear prejudiced attitudes openly aired. I regularly met people interested in talking about politics and ideas, and there was more challenging and thought-provoking arts and culture readily available.
Now I live in a part of the UK where I'm surrounded by Tories / UKIP in a very mainstream town where the Daily Mail is by far the most popular paper. The arts and culture is also pretty mainstream, it's not usually challenging in any way.
People don't really discuss politics much unless it's bloody Brexit, when people seem to think it's a great idea, based on xenophobic / racists attitudes.
I'm really sorry you don't like where you live (or at least by the sounds of it you don't). But that isn't representative of the place I live, or indeed many other places in 'the provinces' (so patronising by the way). Lots of different cultures get along well here, it's really unusual to hear someone saying something racist, and if someone does say something racist, they'll be told in no uncertain terms all about themselves. UKIP don't even stand here and I don't know why the Tories do, they never get a look in. People talk about politics a lot, now more than ever. We strongly voted against Brexit and the Daily Mail is a joke in our city, the one person I know who buys it gets endless ribbing for it (but interestingly, still voted Remain). For the size of our city we have a great arts and culture scene which does a great job at involving the public for free, so it's accessible and inclusive. There's currently a city-wide art project going on which has taken over my facebook feed as almost everyone is getting involved. It will also raise thousands of pounds for a local charity later this year. We have a few museums and theatres but lots more only an hour/an hour and a half away. We have a close community, you'll almost always have mutual friends with any random on the street and this involves people who have joined us from other parts of the country and from other countries. Although I've always lived here I think it's pretty easy to make new friends here, for example by joining a local group or evening class to do with your interests (there are loads - sports/musical/babies and toddler) and being friendly, just as people from here do.
So what I'm trying to say is, don't tar every place outside of London with the same brush. If you can't move back I agree with pp about focusing on the positive aspects about your new place.