Cloning, etc. is not forbidden, just cloning of humans. Anything that dehumanizes the alive, from newest expression (as in conception) to old age, is wrong for the human race. The rest of creation was given for us to have dominion over. Cloning and stem cell exploitation of other species is a great way to help the human race remain alive and superior. Cloning and exploitation of human embryonic beings for their body parts is a good way to destroy our position and trash our species. Such exploitation and dehumanization isn't necessary in the long run. We're smarter than that, hopefully.
The problem for us is that if we start human cloning we will pretty soon not be us anymore. So, human cloning cannot possibly do us any good and is not a moral choice.