My parents separated when I was very small. I grew up with my mother, and I was a single child then. She was very independent, doing her things and having fun alone and working.
As a result, man is the only successful type which has remained as a single interbreeding group or species, and has not radiated out into a number of biologically separated assemblages.
Only ways you can keep folks hating is to keep them apart and separated from each other.