Well, the school isn't limiting her really. In fact they are awesomely flexible. But it makes sense that a high school class may include material that's not appropriate for an 11 year old. If she joins the class and reads something else, she's still getting exposed to the discussion. This is stuff that she has strongly indicated she wants to stay well away from.

So this is the solution for now. I think my frustration is more that our situation is so different that it's a constant series of Hobson's choices without anyone to really talk to.