What is the responsibility of the federal government if the state of Oregon declares all citizens over the age of 70, who are unable to sustain themselves without assistance, be euthanized?
Your definition of an independent life dodges the issue - does that genome have a right to suckle sustenance from another's body, while inside it? You would call that independent? That seems arbitrary and capricious to me.
The State it can't force a woman to incubate that life with her own body, and not violate both her right to be secure in her own person, and her right to not provide servitude to another life. (much less succumb to a rapist's dominance)