I was a white student bussed to a predominantly Hispanic and black school in the 1970s.
Here's my take.
Parents who wanted their kids to go to the best schools possible moved to neighborhoods which were not coincidentally all-white, only to be told their kids would be sent across town
Obviously, minority students living in less desirable neighborhoods lacked that opportunity as well.
I remember seeing on the evening news that somebody shot at a school bus to prevent it from being used to integrate schools.
In my school district somebody put a brick through the windshield of a bus with kids on it.
Sure, there were overtly racist nutjobs coming out of the woodwork over the issue, but they weren't representative of most who opposed school bussing.
Yes, some people are racist and don't want their kids rubbing shoulders with people of color.
And some people are snobs who don't want their kids associating with those of lower social standing.
I spent about 45 minutes being bussed both ways, to and from, every single day of the school year.
Minority students who lived near my school spent about 45 minutes both ways being bussed to a school in my neighborhood.
After bussing, the student body at the school I attended was about a third white, a third black, and a third Hispanic.
It's true.
Because some of the highly paid recent graduate white teachers from my neighborhood school were bussed across town, too.
Bussing was one plan to accomplish this laudable goal, but many people had legitimate reasons for opposing bussing which were not overtly racist.