Also, why is bacteria life on mars but a clump of cells is not life on earth? ;p
There's no winning this. That's why it's actually smart to let the states decide this - that way Trump has no say in it.
That is conflating life (the ability is eat, shit, reproduce, and the potential to late become sentient) with actual sentient life, which is not correct.
Also, no one is planning to ban antibiotics because bacteria is considered life so we can't do anything to save the host by killing it.
Because the bacteria on Mars would plausibly exist on it's own. On a different planet.
A newborn by literal definition can exist on its own. It has been born.
A newborn can breath, metabolize foods, and does not depend on being connected to another life giving organism.
The more appropriate work you're looking for is "care". You need to care for a newborn for it to survive.
You can provide care specifically for a newborn. You cannot specifically provide care for a fetus, you are providing care for the mother.
I know all of this is falling on deaf ears though.
“Can the fetus survive without the host body?”
That’s a medical question that will slowly move toward not aborting ever. And it solves the medical issues as well. “This fetus is killing the host” always allows for removal, because we can either keep them alive, or it can’t survive.
Then the folks who want more babies to reach term can focus on improving medical technology instead of getting involved with the mess that is people’s love lives.
Do you also think neurons, muscle cells, etc are also not alive?
The abortion debate is not about whether or not the thing that gets removed during abortion is life--I doubt you can find any competent biologist who would say it is not--but rather whether that particular cell or group of cells should be treated different than other cells or groups of cells in your body.
E.g., why should abortion be any different from removing tonsils or from circumcision, both of which also involve the removal and death of living cells from the body?
There is a difference between something being 'alive' (although I think the examples you give are dubious), and being a 'life'.
Does any reasonable person believe that zygote at that stage is truly equivalent to a human life?
Next up no one should be masturbating because each sperm is potentially the next Mozart or Einstein.
Compromises must be made!