What I Know & What I Want To Know

Abuse? It's a complete mystery to me I will never understand why in the world people feel that abuse will solve things. I have been through many parts of abuse and I have observed it. Abuse to me is just someones excuse for having an overactive temper. People who have abused more than likely were somehow abused in their families as children. Whether that means physical, emotional, mental, or sexual abuse. Don't get me wrong I do believe that some people who become abusers have never experienced it themselves, but for the majority in my opinion I think they have mostly been abused in some way shape or form. The things I have experienced have made em a stronger willed person and i feel as if the things people have done to me have made me a better person and it has opened my eyes to more things.
I'd like to know if there's a waver in brain functions while people are abusing others.
What motivates them to hurt people?
What motivates them to forced themselves upon others?
Do they get enjoyment out of these things?
Do they believe that if this is how they work, they won't ever be hurt?
Do they feel trapped inside themselves so they turn away everyone else?
Honestly, I want to know all about the abuser..because I have been the abused...
I know how it is from the victims side, but how is it from the abusers side?