Empathy is not the problem everyone has empathy for their own social groups. The problem is the division between these social groups. There is no grey anymore just black and white. You either hate me or love me.
I agree but I also think its more complicated than either hatred or love. Conversion therapy is, I think many people would agree, a form of hatred on gay people. But a parent trying to force their child to be straight would argue they love them dearly and that, if the parent was gay, they would happily undergo therapy to become straight and normal, so they are also empathetic. It's hard to argue about empathy and hatred and care when logic is twisted like this.
> Empathy is not the problem everyone has empathy for their own social groups. The problem is the division between these social groups.
From this I'd say limiting empathy to our social group leaves a hole where the empathy for everyone else should be - and that divisions grow in that hole.