I'm for cloning not against.
Most Helpful Opinion
I know that cloning research and tech is in its infancy. However, I believe its advancement and eventual prevalence is an inevitability. And that would be my approach to the argument. Show how each new technology that was railed against as being an affront to some fictional god has always moved forward without much hindrance. Track cloning R&D progress. Perhaps there's a logarithmic increase that would reflect said inevitability. Based on progress made, questions answered, and new problems revealed you may be able to simulate an expected set of milestones in the future. Cloning: A Timeline of Progress to Come or something like that.