an embryo is not viable out of the womb
Yes, but it is still human life.
One would think our 'reverence' for human life would find it's way into our need for endless wars and global occupation, empire expansion, our healthcare debate, our for profit prison system, and our economic cannibalization of society for the benefit of the entitled Wall Street bankster/"job creator" class.
And since it has no impact in all these other areas/discussions, you'll have to forgive me for not buying into any american 'reverence' for human life. It is about something else.
Your argument here would render male masturbation an act of mass destruction and the genocide of millions and millions of lives per ejaculation.