Think of it. You know in your heart that killing an unborn human baby is wrong on every level, however you can't stop the practice. It is a "legal" institution. Therefore, you can only do so much which in the end does not remove abortion from the land.
That is exactly where our founders were when it came to the subject of slavery.
At all of the colonial colleges our founders attended, slavery was the number one subject debated in the debate clubs. No one in the colonial colleges left those institutions with a love for slavery.
When Jefferson wrote his first draft of the Declaration and handed it to the Council of Five, his editorial board, he had written a couple of paragraphs on why slavery was evil. The board told him that although they agreed with him about slavery, the Declaration was not the place in which to address that issue. Jefferson did sneak a phrase in when he said "All men are created equal." And by that he intended to add all humans which included slaves.
The Declaration needed to be a unanimous production. There were about 3 or 4 founders from the South who had not attended the colonial colleges, instead they graduated from universities in Britain where slavery was not rigorously debated. So, the end result was unanimous by the signers but not a declaration against slavery.
It would be false to conclude that just because Jefferson's two paragraphs were deleted that somehow our founders delighted in slavery.
That is an excellent comparison. I suppose today’s liberals would be Torys.