Abortion isn't about religion. It's about human rights, in both directions. The pro-choice side is primarily concerned with the human rights of women to have bodily autonomy and equality. The pro-life side is primarily concerned with the human right to not be unjustly killed - even before we are born. It will never be enough to tell people concerned about human rights violations to mind their own business and let everyone decide privately. That's never going to work. Abortion kills humans. The p