Stealing this from anonymous internet poster, maybe quote from somewhere else. Succinct.
"When is it a human life?" is debated instead of the more relevant question, "Does anyone have the right to use the body of another against their will?"
The answer to that is simple, obvious, and has huge legal precedence. We don't even take organs from corpses to save the lives of people who need donations unless they gave us permission to do so while alive. Let that sink in. A person's right to their own body is so respected that we observe it even after death and even if honoring it will cause a person to die. A confirmed person. I'm not talking a hypothetical maybe person here.
The answer to that is simple, obvious, and has huge legal precedence. We don't even take organs from corpses to save the lives of people who need donations unless they gave us permission to do so while alive. Let that sink in. A person's right to their own body is so respected that we observe it even after death and even if honoring it will cause a person to die. A confirmed person. I'm not talking a hypothetical maybe person here.