https://www.youtube.com/watch?v=wOR1wUqvJS4
Apparently this was a speech made for a school competition of some sort, and her teacher originally told her that she was disqualified because the topic was too
controversial. However, after hearing the speech the teacher decided to let her go on, and so the girl went on to win the competition. Even without having to know any of that, her speech was still detailed and brilliant.
I was surprised at how well informed she was, and how much research a 12 year old girl did for something like this. She makes sound arguments and brings up points that even the 'brightest' pro-choice advocate stumble through.