I think overall the extrapolations are good. It's seriously funny that the sacrement of thr Democratic party is destroying the party.
The one flaw I see in the extrapolation is that they are assuming all abortions would cause one more human to be born. My guess is that some of the women who have multiple abortions, if forced to give birth would stop having children.
Lets say a woman has had 10 abortions, would she have carried 10 children to term? I doubt it. But overall I think it has serious ramifications for the Democrats.