> but as to the rest of the country: it suddenly felt like a foreign land that I didn’t understand and in which I was not welcome.
That struck me as an odd remark. This sudden change wasn't provoked by a visit to (say) Leeds, where people made her feel unwelcome; it was provoked by a plebiscite whose outcome she disagreed with.
I voted Brexit, knowing that there would be economic costs that would last at least ten years. I also knew that european governments would be angry and hostile; and that the Tories would make a dog's dinner of it. But I still voted Brexit, because for various reasons I think the EU is deeply corrupt.
But I still feel like a european, because I am a european. I feel fellowship with other europeans - provided they also feel like europeans.