2/6 (the suffrage and abolitionist points). The fifth comment fascinates me, because my historical understanding was that Democrats even in the 1800s were more accepting of immigrants - that is, Irish Catholic immigrants. One of my few gripes with the antebellum GOP is their close association with nativists and xenophobes, and that being abolitionist and nativist was somehow a package deal much of the time.
Considering this is the 1856 election, I think this would have been a Know-Nothing Party cartoon.