As much as I believe in freedom of association, freedom of movement, and so forth, there are still certain neighborhoods in certain cities I wouldn't venture into to visit friends, especially after dark. Would that mean I was compromising my beliefs in said freedoms, and in doing so, "not being me?" Maybe so, to a certain extent. If I were to go to them and get mugged or murdered, would it be my fault? No, it would be the murderer's fault. But that doesn't set aside the fact that I ignored reality and failed to take steps for my own well-being.
We don't live in a utopia. It's all well and good to say, "he did nothing wrong, the kids should be taught tolerance," but that ignores the reality that some battles shouldn't be picked unless you're prepared for consequences. High school is a hormone-driven, emotionally charged place. There's enough angst to keep Emos and bullies in business for millenia. There's plenty of time to make social statements of this sort when one reaches an age where the social strata is a tad more cerebral than that found in HS. The parents and the school should have put clamps on this kind of flamboyant behavior from the beginning. The bottom line is he would still be alive if they had accepted their adult responsibility for doing so rather than expecting teenagers to police themselves.
The refusal to accept this fact is one reason DUmmies are dangerous. They refuse to acknowledge history and human nature, and they don't give a damn how many people are martyred on the altar of political correctness while they vainly attempt to create their own heaven here on Earth.