When I was in HS in the mid 70’s the county introduced “bussing”. My Dad was a barber and could only afford to rent in the higher scoring school district, which we did. Bussing Pissed him off.
There were daily riots between blacks and whites. A sudden mixture of two different cultures. Insane. Stilettos, switch blades, belts with metal studs. At this point, my mother started to work so my parents could afford to send me to private military academy. They straightened me out and my grades went way up.
My father was the Principal of a High School in Florida that was integrated by Federal Courts and done in the middle of the year.
The previous year when I was in elementary school, until the high school was finished, we went on double sessions because of integration.
The elementary kids started school at like 6am until noon, the high school kids started after that in the same school.
Fights between whites and blacks were happening all the time, my father as the principal was right in the middle of it.
The difference between then and now, back then people left school each day went back into their own areas to live, in this case in Blue Cities they are being forced together into the same neighborhoods, this will no end well, especially when many of these ethnic groups are from parts of the world where violence is an everyday happening.