Anyway, all the evidence I've seen suggests it is areas with relatively low levels of immigration that showed the strongest tendency to vote Leave.
It's possible that the rate of change of immigration is positively correlated with the % Leave vote (Boston, Lincs. is often cited as an example). The above article touches briefly on this but does not explore it further, and I haven't seen any other article that does.
Places like Boston had large levels of migration, but were not funded nearly so much, despite migrants bringing in a lot of money. It feels like migration done on the cheap.
People do notice these things. Post 2010, local authority budgets were heavily cut in many areas. Increasing numbers alongside cuts; it doesn't make things easier.
Source:
https://fullfact.org/
From the beginning of the Syrian crisis in early 2011 to the first quarter of 2015, almost 4,200 Syrian refugees were granted asylum in the UK in the initial decision made on their application.
A further 100 people were allowed to stay in the UK through humanitarian protection or discretionary leave.
According to
this BBC piece, the issue with Boston was not migration
per se (more of they/them) but change (from village to more cosmopolitan town). Many English people dislike change, they're very conservative.
Boston is one of the most extreme examples in Britain of a town affected by recent EU immigration.
I can comment on Boston, I spent 5 months living and working there summer last year. I also grew up 30 miles away in a similar town.
Boston received basically no funding. It was assumed that doctors and schools would soak up the extra. They didn't, not without consequence.
The price of housing has gone up dramatically. It's now more expensive to rent than in near by Nottingham and the BTL landlords are cashing in.
The place is full of Polski Sklep and Lithuanian Latvian shops. An enterprising Portuguese couple have opened 2 bars that feel like they really are in Portugal. There are dozens of Polish cafes. For me it felt like being on holiday.
In the factories the hourly paid staff a re about 50% non British. A lot of them are well educated. Some have learned good English. There is strong competition for supervisory jobs and anything better than basic line work, such as quality testing or engineering & maintenance.
What people feel, and with justification, is that they are being pushed out. Back in the 80s Boston was always a bit of a dump but it was OK. There was work, either on the farms or in the veg processing factories. There was cheap housing, either in the towns or when family came along bigger places with land out in the sticks. Kids went to school. It's got a decent hospital. Young lads could have a car or a bike, go to the Axe and Cleaver to see bands, days out in Skeg or Nottingham. Happy days. You weren't going to be rich but it didn't matter. Move on and that's changed. Doctors and schools are under huge pressure. E Euro kids get special lessons to learn English. They take some of the social housing. There are employment agencies where the ads in the windows are in polish and Romanian but not English. Housing costs a fortune. The shops have changed, voices in the street speak strange languages, it's like being a foreigner in your own country.
Now then, who wouldn't feel just a little bit angry and resentful? Do you want to do something about it? 75-80% said "bloody right I do!" and I understand why.