As a human, I don't mind cloning. If the original asks to be cloned, then that is their right. The clone is simply an extension of that person, who can be freely amputated, but only at that person's behest.
@Forthelulz Not all would agree with that statement. The reason I say its a dangerous gray area is because some would say the clone has their own personality (and are thus their own person) and harvesting them for organs would be the same as harvesting a stranger off the street. If you've ever seen the 2005 movie "The Island", I think that can be a good representation of how cloning can delve into very dark areas.