He denied that Southerners had Fourth and Fifth Amendment rights in slaves. My point is pretty straightforward: deny people their rights and you deny them their citizenship and their humanity.
What part of that is hard for you to understand, babbler? I'll try to help.
Our friend pecked and sniffed at Southerners' rights. Said they didn't have any. Copped a moralizing stance when he did it. Wake up and smell the coffee, I drew a perfectly logical inference. He denied Southerners their rights out of despite (despite is what you do, when you despise someone -- that's a hint, OK, laughing boy?). Because he doesn't like them, he does the same thing Roger Taney described the law doing with respect to the rights of slaves: they are slaves and property, and therefore they have no rights that a white man need respect. That's called abrogating rights. By abrogating Southerners' property rights in their slaves, our interlocutor denied that these Southerners were citizens, and made them rightless persons. He equated them with slaves.
How do you dissever one right from others, and say to a person "well, you may have First Amendment rights, but I'll uphold no rights -- recognize no rights, enforce no rights, give you no relief whatever -- that you may claim under the Second, Fourth, Fifth, and Seventh Amendments," without making that person rightless, and less than a citizen? Because if you can say that to a person and make it stick, then you needn't recognize or uphold his First Amendment rights either, because you enjoy despotic power over that person.
That's what our friend just claimed -- the right to tell other people what rights they have, based on where they come from, and who they are. That's despotic, and it's sectional prejudice.
Now do you get it?
There is nothing to get. There was never any right for any man to hold others in bondage no matter what the laws might say about it. Your insane ravings cannot change that fact.
If one believes, like I do, that rights are from God rather than, like you do, that rights come from the power of an individual then there is no possible way I can believe God gave us the right to enslave our fellows merely because we have the power to do so. Nor has this anything to region.
It is not difficult for persons of judgment to "disserver" the right to slavery because there is NO SUCH right and never was. I will admit that it is difficult for a person like you to comprehend that.