When does life begin? Missouri's Amendment 2

In the documented arguments of those closest to the crafting of the language of proposed Amendment 2 to the Missouri constitution, neither SCNT embryos nor IVF embryos are human beings. The amendment’s alleged justification for the crime of cloning is that both types of embryos become human beings when they are implanted in a uterus. Prior to implantation, the allegedly not-yet-human embryos from SCNT and IVF can be destroyed for research purposes. But, unlike IVF embryos, SCNT embryos become clones when they become human. Using the amendment’s definitions and terms, the crime of attempted cloning is the attempt to become pregnant by the implantation of an embryo that is not human and not a clone until the woman becomes pregnant.

Is that anything but arbitrary and capricious?