I think a lot of white Americans feared retribution and competition from minorities. Before integration, they had treated minorities very poorly to say the LEAS

I think a lot of white Americans feared retribution and competition from minorities. Before integration, they had treated minorities very poorly to say the LEAST. I think it's pretty normal to be afraid when someone you beat with a horse whip last tuesday suddenly gets to own guns and businesses in your neighborhood. In addition, propaganda from racist organizations was running wild. Stuff like "White Genocide" and "Race Riots" were predicted by racist organizations who still profit from this fear today. But naturally the answer is that they were fleeing minorities, violence, AND landlords. In most people's minds all three were mixed up. In the end, the makeup of the neighborhoods they fled to were built around isolation enabled by cars.