I think you are not born with prejudice or hate you learn that as you grow up over different issues, whatever it might be and people always like to be right whatever it might be about and maybe the person is right but sometimes being right is not always worth losing a relationship especially family sometimes it is better to quietly let someone be wrong. Forgiveness is also a key for a good relationship that is hard for a lot of people to use and give even to one’s self and then even if there is Forgiveness a lot of people want to hold own to the wrongs , which is that truly forgiveness to always remember and possibly bring it up to the person during the angry moment? One thing for sure is hard to be right all the time and it’s hard to keep a relationship when you make someone feel they are wrong even if they are nobody wants to be wrong. It hurts their pride and their ego..