Excellent example, and yes that's part of durkheims type of theory.
Durkheim iow theorizes that society causes suicide. I am still reading about it but it's such a weird concept to me because prior to that I looked at it as more of a individual psychological problem.
If you can't forgive something, you hold onto negative thoughts energies or emotions
that are attracted to or attached to the unresolved conflicts.
Then this can open the door to either jealousy, rage or depressed thoughts or other things you can't control and those can lead to situations ending in homicide, suicide etc.
So yes, there are problems in society, but the issue is whether we can forgive them or not, and it's the unforgiveness that can cause distress, disease, mental or criminal illness to manifest.