Exactly the way I am. Pro-life from the womb to the grave.
So you're for universal healthcare, and for a welfare state that looks out for the poor, with high levels of taxation on the rich to provide resources to essential services for society, that save people's lives.
Oh wait no...
Well, I am.
^
And I'm a semi-vegetarian and would definitely be a more thoroughgoing vegetarian if I had stronger and more consequent moral behaviors.
That's kind of a good question.
No because human life is different than the lives or other animals.
An octopus sea slug has more sentience than an embryo.
But an embryo has the potential to develop into a human being... whereas a slug and octopus are a slug and octopus...
Not the sharpest argument.
I am pro-choice, by the way.
So what? All human gametes have the potential to form human life, and we don't get angry about women having periods.
There's a clear trajectory of something with its own set of genes etc. proceeding through different developmental stages between conception and birth that manifestly isn't the case with cells that have to fuse with cells from an entirely different person first. This has never struck me as a good-faith argument. Just say that brain activity has to be present for something to be a person, or that the soul enters the body at birth along with the breath, or something.