What you experienced was not just rape. It was also incest and child abuse. You don't see posters on college campuses about incest and child abuse, I know. That doesn't mean that it's no big deal when someone else gets raped. It just means that you have a different problem. You should get a lawyer and call the cops about what he did. He does not deserve to live in society and be viewed with respect. Your mom should be prosecuted for impeding the course of justice, or something similar. She is not a nice person.