Reproductive cloning has a very poor success rate: many embryos would die before you successfully created a human clone
Creating a replacement for a lost child wouldn't work, as there are lots of other factors that make us who we are
Each human should be valued for their own sake, not because they are like some other person
Everyone should be born free and equal, but a clone would already have their life mapped out for them - they would be a slave. It would already be decided what they are supposed to do with their life
