(((CoCo))) Thanks
Josie
Speaking as a counselor a parent will often focus on a child that reminds them of an abusive parent in their past. So if they had an abusing mother and they see a child that resembles that aren't they may target them for that reason. Interestingly they may also target a child that reminds them of themselves as a child. And most sadly they target the child that has qualities they never had and they can't bear to tolerate. So in each case there is a transference of anger and hatred onto the child.
It isn't fair. It just isn't.