Argument: Clones are not good or bad; they have the potential to be either
Rabbi Shraga Simmons. "Cloning". June 3rd, 2008. Aisha.com - "So... is cloning good or bad? Judaism says there is nothing in the world that is inherently good or evil; there is only the potential for good and evil. Even something we typically associate as "bad" - for example, outrage - can be used for good - outrage against injustice. Similarly, even something we typically associate as "good" - for example, giving - can be used for bad - over-giving, or smothering. Talent, education and wisdom only have potential."