I'm going to call my wife petty for not letting go of my parent's behavior
Has your wife stayed mad at your parents often?
Yes, this is definitely not the first time she has held a grudge against my parents.
While it would be nice for your partner to forgive your parents and to move on, sometimes it isn't that simple. You should speak with her about how it makes you feel and not take it down such a negative route or else things in your relationship could become broken. If you're in love with your wife then you owe it to both of you to try and make things work.
I love my wife and we are doing well. I just want to show her how much of a bitch she is to my parents, because I don't love them at all.
I'm not sure I understand what you are saying regarding whether you love your parents or not, but I have to reiterate that you shouldn't use such a negative tone with your wife. Yes, your frustration is understandable in this case, but you shouldn't speak down to her. Just let her know that you want her to be more forgiving.