You mean the other reply you gave me where you either misquoted it or you misunderstood the study? And you artificially limited the scope to a single kind of hurt which wouldn’t even capture the kind of hurt we’re discussing here?
Actually I tried to find the study that you’re talking about and I can’t find it. Did he actually do a study on this? Afaict he is just a self-help author. I cant even find any formal education related to the subject.

Meanwhile if you do a quick search for if unresolved trauma leads to violence, you see a ton of research supporting that.