We know this, they know this. That's what makes them evil.

Life begins at conception. 

As discussed in more detail below, I reported that both a majority of pro-choice Americans (53%) and a majority of pro-life Americans (54%) would support a comprehensive policy compromise that provides entitlements to pregnant women, improves the adoption process for parents, permits abortion in extreme circumstances, and restricts elective abortion after the first trimester. However, members of the media were mostly interested in my finding that 96% of the 5,577 biologists who responded to me affirmed the view that a human life begins at fertilization. 

It was the reporting of this view—that human zygotes, embryos, and fetuses are biological humans—that created such a strong backlash. 

As long as people can convince themselves that babies aren't really babies, and we can just get rid of them, then those same people can go about using women as living cum dumpsters without any guilt.  Let that sink in for a moment.