Actually, "murdering babies" is the so called standard argument in the discourse moral philosophy had regarding abortion:

https://www.iep.utm.edu/abortion/

US public perception might have swung to favor a different weighting, but not following this is clearly far from "not wanting to talk about it".

I still think it is a great example for this HN thread though, as having different opinions is suddenly perceived as a hostile act with - presumably - mean intentions.