Well, perhaps so. Would you say that I've condensed his thesis accurately?
I think the better argument to make would be comparing the ante-bellum abolitionists, civil rights and abortion as faux movements co-opted by the Yanks, Dems and GOP respectively that merely afforded a moral gloss to their ensuring a predictable factionalism that suited always the interests of (dare I say evil) government.
Abortion is a GOP policy. Dems were only too happy to flip-flop and make abortion their litmus test (after having reviled it as genocide of the poor and unfit). The Emancipation Proclamation surely stands as testament to the North's sincerity where the issue of slavery was concerned.