Self-evident truth is in the constitution, and the promise of equality, so who's equality, the original framers or what the framers wanted the country to discover for themselves over time.
How can you support Lincoln's radical emancipation proclamation ? It went against the Constitution. Just because something is not in the original constitution does not mean that it can not have a amendment that changes the original intention of the Constitution. That is what the original document allows future generations to do.