I think the opposite it true and offspring would be decreased. Unless you call the disposing of 88 humans a minute unnaturally by abortion is moral.
I'm not saying anything in regards to abortion in the line you quoted.
Again this instance shows the creation of morality by man. To some abortion is always immoral to others there are situation where it could be termed moral.
There is no better love between 2 people than mutual respect for each other WT Young, 2002
Who gave anyone the authority to call me an authority on anything. WT Young, 1969
Since Evolution is only ~90% correct it should be thrown out and replaced by Creation which has even a lower % of correctness. W T Young, 2008