Let's see Jefferson Davis's "hate" in his farewell speech to the Senate:
If you will but allow us to separate from you peaceably, since we cannot live peaceably together, to leave with the rights that we had before we were united, since we cannot enjoy them in the Union, then there are many relations which may still subsist between us, drawn from the associations of our struggles from the revolutionary era to the present day, which may be beneficial to you as well as to us....if we must leave you, we can leave you with the good will which would prefer that your prosperity should continue. If we must part, I say we can put our relations upon that basis which will give you the advantages of a favored trade with us, and still make the intercourse mutually beneficial to each other.
Sorry. I don't see "hate" there.
If the Democrats hated the Constitution so much, why was the Confederate Constitution in most instances word-for-word from the US Constitution? The Democrats of the Civil War era revered the Constitution, while the Republicans in the North held there were higher laws than the Constitution and looked the other way when Northern states refused to honor their Constitutional pledge to return escaped slaves.
Nonsense; such a "Constitutional pledge" was not only nonexistent, but also quite impossible. There was no such thing as a legal property right in a slave within the jurisdiction of a free state, the Penumbral Emanation hocus-pocus of Dred Scott notwithstanding.
The slave states added hypocrisy to their other deadly sins when they demanded abrogation of the states' rights of the free states in this regard.