Scott Adams, author of popular comics strip Dilbert, has the answer.

Dilbert - “Why is it unethical to clone humans?”

Dilbert’s Garbage man - “Morality is based on accepted norms, and accepted norms are based on morality

Dilbert - “It is self causing?”

Dilbert’s Garbage man - “Ironically, yes”

Link.

Scott Adams gets it. Do you?

As I said before I would be happy to be cloned [blog.taragana.com/index.php/archive/i-want-to-be-cloned-or-what-do-i-want-to-do-with-my-life-if-i-could-clone-myself] . The whole argument of ethics against reproductive cloning is baseless.