I mean, I'll speak for him with my own take if that makes you happy.
Brexit for me, served as the catalyst for people to broadly showcase or suddenly develop some form of blind, misguided nationalism. Due to an emphasis on "taking our country back" and "sovereignty", more and more people seemed to flip a switch that had them behaving or openly talking about the likes of any type of immigration negatively, as well as talking about immigrants negatively. This resulted in an uptick of openly racist behaviour towards a variety of ethnic groups within London, and out here, in the Valleys tends to be much worse.
It's not the sort of nationalism, nor racism that ultimately leads to violence or oppression of minorities, it's the openness of it all. People feeling emboldened to talk in such ways so openly.
I'm not looking to have a discussion on why Brexit was or wasn't bad in the grand scheme of things, but in my experience, things have taken a more negative path on that front.
To clarify, I don't think England, or the UK as a whole is a shithole. I love my country, I'm patriotic. I miss London too. The peace and quiet in the countryside is great for my wife, kids and I, but I miss the bustling city. I still believe that there has been an uptick (not based on shitty journalistic reporting but my own, lived-in experience) of blind nationalism and a brazen kind of openness to racism or some form of prejudice.
You're free to disagree with whatever I have said, I'm not going to offer a follow-up rebuttal to what you say, as lived-in experience and anecdotal takes, however small, however large, don't typically fare well in debates for a lot of people.
Anyway, respect, have a good day.
Uptick in violent crime happened in the 60s, and has risen sharply since then cant quite put my finger on why though