Make no mistake about it, this has been mooted in academia complete with a well developed philosophy. And it is within the range of acceptable ruling class opinion, as the man is a department head at Princeton.
Yes it can easily get a lot worse than it is now.
The problem people like Northam and SInger run into is this. Northam was pretty clearly referring to “anencephaly” and saying a woman should be able to abort an anencephalic child right up to or even in the “Fourth Trimester”. The problem is, one need not abort these children as they aren’t viable in the first place. In my day there was only one case in the literature of an anencephalic child lasting over 48 hours. Which is why you “make the child comfortable and explain things to the parents”. Now with so many Ultrasounds done on every baby no one is surprised by anencephaly at birth. No one has objected to prematurely inducing birth of anencephalic children that I have ever heard of. It is pretty hard to make the case that a fetus with no brain is “human”.