-What does "absolutely pointless and potentially devastating" mean? These statements are value judgments, which means they are not universally true, but determined in relation to something.
-Do you have any evidence that the 100% of tested animals were murdered?
-The argument that "we value human life" is manipulative. People who advocate cloning also claim they value human life.
-There is no point in supposing that cloning would be abused. The societies can create legislation to prevent potential abuse.
Hope this helps