With freedom comes responsibility, personal responsibility, and some seem to not want to take on the responsibility. The internet is no different. It is truly international. We cannot make it illegal for a WEB site in, say, Germany to publish porn, or anything else. Nor should we.
Parental rights imply parental responsibility.
All use the Internet. I expect we will have other problems. But that's life, and we prefer to handle our children's Internet problems ourselves. That way, they also learn to rely on themselves, rather than government imposed morals. I believe that government imposed morals actually constitute permission to not have any morals yourself.