Yes, I understand and am familiar with these pro life v. pro choice arguments.

The point is, it doesn't matter if I'm for or against your argument about the nature of personhood, or if the Catholic church is for or against it.   What matters is that I, you, and the Church have a right to our views on the matter, and also the right to promote those views in the political sphere.

I honestly don't understand your position.   Are you arguing that Catholics shouldn't hold political office, because their pro life beliefs don't agree with those of Bill Nye?