I find you to be an interesting person, History Princess, which is why I always try to catch your threads and posts when I can.
Many of the questions and issues you raise are things I relate to and have asked as well throughout my lifetime. Like you, I found that story about the Levite's concubine when I was young and thought to myself, "How can anyone believe in a God who would let that happen?"
I understand that maybe you believe you are called to bring people to action through extreme measures like insults and shock, and if that's what God has called you to do, I certainly don't want to oppose your calling.
I'd just like to suggest though, that since you feel so passionately about this subject, maybe you'd want to consider becoming involved with groups that are out there actively helping people recover? The internet is full of support sites--since you say the internet is the only thing you have, you might want to use it towards helping victims.
You say you have no power or influence but have a great deal of empathy--you don't know the power or influence you might have (through God's grace) when you reach out to, or support an organization that is helping victims get away from their abusers and to heal. Many people right here on CC share testimonies of abuse as you've described--maybe you could take a minute away from posting and pray for someone right here in your thread who is suffering because of the injustices you speak of? Or send someone an encouraging PM, or post a positive message on their profile wall if you can't PM--little things like this seem like they don't matter, but they can mean the world to someone.
It honestly makes me feel sad to see you swallowed up in so much bitterness and hated. I pray that God will give you peace, and a righteous way to vent your anger.
I understand that it often seems like a hopeless situation, but we fight back by giving hope, no matter how small, to other people. I truly hope you find a means of fighting for a social platform that will help you, and not simply cause you more anger.
You are able to do much more good than you think.