Rights have to mean something. If I support your right to say whatever you want according the constitution, does that mean that I also by definition agree with everything you say? Of course not, that's a stupid argument. Likewise, just because I think the parents have a right to parent and punish their child, it does not mean I agree with the punishment. You are ignoring the important distinctions, either because you don't get them, or on purpose, and trying to make a case out of it where there is none.
No one has criticized the child, and no one has come close to showing any evidence that the pro choice crowd is appalled by her choice, instead every pro-choice person that has spoken on the issue has stated plainly that they support her decision regardless.