Yes, I also feel there was an "unravelling of integration", which is a great way to put it, AutumnRose1.
It seems ludicrous now but, back in the early 90s, I remember a mixed-ethnicity group of us as teens talking about how we would be the last generation to know what racial prejudice was. We seriously thought that because we just couldn't conceive of those ideas surviving any longer.
We all went to school together, we lived next door to each other, we socialised together, we dated each other, we went to each other's life events (christenings, marriages, funerals). We knew each other's mums and dads, and stayed over at each other's houses. A huge number of us have mixed-ethnicity/heritage children, as did our parents; I myself am mixed ethnicity/heritage, as is my DH.
So to us, there was no way racism could survive because, well, we were the same people, the same community. Yes, we were all different colours, and our parents and grandparents had different accents, and we all ate slightly weird food at home, but that was no barrier at all -- even when we did take the piss out of Don because his dad had a massive collection of Desmond Dekker CDs. 
It wasn't until I went to university and mixed with more privileged students that I realised not every one in Britain was like us working class Northerners. That was when I first met people who were nervous of black people and weird about people from immigrant backgrounds. And there were people who were odd with me because my boyfriend of the time had a West Indian dad; they were wary of him because he was obviously bi-racial. I never had that experience with working class people.
Now, it is those very same privileged people on my social media feeds that are calling Northerners and working class people "racist" for voting Tory or Brexit. I hold my tongue and don't respond, but it infuriates me.
There's no recognition of Northern working class lived experiences. There's no recognition that Manchester was one of the only cities in the Western world where working class promoters invited American black soul artists to perform in the 1960s and paid them a decent wage. There's no recognition that Jo Smooth was so blown away by the love he got touring in England in 1987 that he wrote Promised Land ... because he'd experienced what he thought was a post-racial paradise in British clubs. Even Kevin Sanderson says today that he couldn't believe that there were all these white people in Britain that loved black urban house music and thought he was terrific; it touched him so deeply as a black man from Michigan.
Instead, it's all just this weird false narrative that bears no relation to reality. Sometimes I think the left thinks we live in the America of the 1950s where white working class "yokels" are just itching to lynch foreigners.
Ffs, those "foreigners", those "immigrants", and those white working class "bigots"? They are our mums and dads, our grandparents, our mates, and our spouses!
It beggars belief. It really does.