I finally beat the game today. (spoulers)

And I am a monster. I killed everyone in the Institute without remorse. I decided that my character was going to go brotherhood all the way. So, when it came to the end, I killed them. I left "shaun". I shot the scientists first before the synths. Why? Idk. Anger? Disgust. Maybe. I didn't want them to maybe try to get out, and maybe make more synths. I killed my son while he laid in a bed, dying of some disease, or old age. I shot him right in the face. I think I'm going to sit outside for a while. I feel empty.