Our society has generally respected individual privacy and the general right to control ones body in regard to reproduction. No one is clearly harmed by it. Prohibiting it would violate the fundamental freedom of scientific inquiring. This is the same as any new medical technology. Research is needed to quantify and reduce any risk.
Nurture is probably more important than nature in the development of human personality.
Except in cases in witch an individual women provided both the somatic cell and the egg, mitochondrial DNA will differ between the progenitor and the clone. Even in these cases, X chromosome deactivation would differ. Our society freely allows single people to reproduce sexually. Destruction of Embryos - We do not now consider embryos or fetuses to have the status of full humans and therefore to be protected by a full compliment of human rights. Psychological harm to child due to diminished sense of individuality and personal autonomy - this is very hypothetical and ignores the normalcy of naturally born identical twins.