Let me try to understand your twisted logic here.<quoted text> Lincoln himself said if he could end the war without ending slavery he would so it fits right into my racist theory!
The Southern Dems attempted to break away from the Union because they did not want to give up slavery. So Southern Dems switching to Rep makes them racist.
Now for a historical look at Lincoln's opinion on slavery-
"Lincoln often expressed moral opposition to slavery in public and private. Initially, he expected to bring about the eventual extinction of slavery by stopping its further expansion into any U.S. territory, and by proposing compensated emancipation (an offer Congress applied to Washington, D.C.) in his early presidency. Lincoln stood by the Republican Party platform in 1860, which stated that slavery should not be allowed to expand into any more territories. Lincoln believed that the extension of slavery in the South, Mid-west, and Western lands would inhibit "free labor on free soil". In the 1850s, Lincoln was politically attacked as an abolitionist, but he did not consider himself one; he did not call for the immediate end of slavery everywhere in the U.S. until the proposed 13th Amendment became part of his party platform for the 1864 election."