1. I disagree. Capital punishment is a case in point. An aggrieved individual does not have the right to impose it. The community does. Similarly, the community has the right to uphold the moral standard it desires. This is part of the police power that has always belonged to local communities.
2. The technology exists. What they do is take a picture of a legal but young looking person. From there, they can play with the characteristics to make the image even more consistent with a child.
Capital punishment is not a "right" of the community, it is the delegated duty of government. It is their duty to perform this punishment simply because of the extreme nature of the crime towards
individuals. We, the people, delegated this duty to our government much as we delegated certain police powers. We didn't delegate these powers to government to uphold moral standards but to protect the rights of individuals.
The entire concept of our form of government is based on individual rights and responsibilities. There is not one mention of community "rights" in the Constitution. The very idea is unconstitutional as is all forms of communitarian ideologies. The constitution recognizes that there is government and individuals, that's all. A community is merely a group of individuals and, as it is a concept more then an entity, it can't posses any rights of its own.
If you were to ban porn, by whatever definition, whose rights are you protecting?