I'll tell you why. Being a parent that is currently fighting this crap in our local schools (and we have been successful) this parent is not only a tax paying citizen with a student in the school, but needs to know how deviant the material is that is being aggresively pushed onto our minor children. Not only is this filth being presented in these "closed door" presentations, but leaks out to those children that didn't attend because it's encouraged for the students to disseminate the information to the absent students after the presentation is over.
GLSEN has become so rabid about the social engineering of our children's thoughts and beliefs, with respect to homosexual sex, that it has become a form of pimping through tittilation.
Can't you see how frighteningly aggressive these groups have become?
To eject a parent from a public school function is horrifying in its intent, and I hope she sues, and wins, a "closet" full of money.