From a biblical perspective, I see no moral difference between killing these children and killing your children or mine. And in general, dehumanizing people like that is very dangerous for a society.
I think Franklin can be an extreme misanthrope. I’m not comfortable with this attitude either.
It is not just misanthropic. The original statement from Franklin approves of eugenics.
Which is interesting - the original promoter of abortion,
Margaret Sanger, was also a proponent of eugenics.