bedlamity:
Yes, a fetus has human DNA. This makes it human.
However, it’s not a person. What makes you an individual? What gives you your personality? What reminds you of experiences you’ve undertaken to become who you are? Your brain or, philosophically speaking, your mind.
If you were born with only the brain stem, so your body pumped blood and breathed, you would not be you. You would be an organic robot; a series of systems that are operating, but that has no consciousness, no awareness of the world around it, no sentience.
A fetus doesn’t become a person until birth, which is when it attains sentience, awareness, and bodily autonomy.
An unborn child is already sentient and aware prior to his or her birth. Watch this video for proof. And given your argument on sentience, anyone currently in a coma should simply be killed because they are just ‘organic robots’.
Even if your premise that an unborn child is not a person was correct – and it’s not, you are still wrong. As stated before – we don’t possess person rights, we are endowed with human rights.