With the recent controversy over Michelle Bachmann signing the the anti-marriage equality pledge that talked about slavery, I think it's worth pointing out that the idea of preserving slavery is inherently conservative.
Now I'm not saying conservatives want to reinstate slavery but it's a basic axiom that being conservative means you want to "conserve" something, and the more conservative someone is the more likely they conserve archaic institutions like segregation and slavery.
Recently I got into an argument about this and found a New York Times editorial from 1860 which actually lays out this argument and decries how conservatives tried to defend slavery:
It is a curious phenomenon of our own day and nation that all opinions favorable to Slavery should be regarded as "conservative" and "practical," while those opposed to it should be stigmatized as the "utopian" and "theoretical" excesses of a "false philanthropy," and their expression denounced by the application to it of that dread political ban-word, "agitation." The advocates of Slavery seem to be aiming to combine in defence of their cause all the calm and solid dignity of recognized opinions with the fierce impetuosity of a new-found propaganda.
- New York Times, "The Irrepressible Conflict.", 1860
The editorial attacks the "propaganda" that slavery is "'the normal condition of society'" and should thus be preserved by conservatives. It's also striking to see the red-baiting that existed in the 1800s with the "political ban-word, 'agitation.'"
My guess is conservatives know this full well and have been drilling obscure counter arguments into peoples heads like how progressives want to create "Slavery To Government, Welfare," which not only isn't true (and requires you to jump through a bunch of mental hoops) but ignores how it was literally a "conservative" notion to want to keep slavery.
In order to win the argument we need to stop kowtowing to a new kind of "Political" political correctness and propaganda and say what are basic, elementary truths.
This can also be seen on my blog