I have two children - my son lives with me, my daughter with her mother. When I became aware of the really sick material out there, I sometimes found myself attracted to censorship efforts. I have fought against it most of my life. In my view, the only legitimate answer is education, not legislation. I try to make my students and my children aware of racism, violence, bigotry, child abuse, spousal abuse, and encourage an alternate and healthier life style - but in the end, they will make their own choices.
Intolerance often sows the seeds of violence.
Unfortunately, censorship often sows the seeds of intolerance. I don't believe we can say that we support free speech, and then add amendments. We simply can't have it both ways.