The reason religion is so powerful

[Mister Agenda]

Right, even children don't have all the rights of adults, why should embryos have all the rights of children?

Presumably, different governments give different rights to different age groups. Most of my rights disappear if I step in North Korea. So perhaps you should specify which rights would bother you if they were given to embryos, and why embryos should be disqualified. (e.g. Children shouldn't vote because they haven't developed the cognitive capacity to make such choices.)

I'm not a relativist when it comes to rights, I have the same rights in N. Korea as I do in the USA, that N. Korea oppresses the rights of its citizens doesn't mean they don't have them. If they don't have them, how are they being oppressed?  

Since you mention it, embryos don't have the capacity to make any choices at all so I'm not sure how they can meaningfully have rights at all.

But we have to consider the consequences of not giving embryos rights. Imagine the horror of a world where there were no laws at all concerning abortion and it was completely a matter between a pregnant woman and her physician. It would be like, gasp, Canada which has about the same abortion rate as the USA.

Funny how anti-abortionists in the USA don't prioritize the millions of embryos sacrificed on the altar of helping wealthy people have babies with In vitro fertilization. It's like they think embryos don't have any rights unless they're inside of a woman.