For something to be "normalized" it has to have been "non-normal" and "outside the pale".
The legitimacy of slavery was always opposed by (at the very least) a significant minority of any societies it occurred in, most obviously among the slaves themselves. Being a slave-owner was always the exception for the wealthy few, never the norm. Christians
enslaving their fellow Christians was never the norm. And most commentators I've seen seem to agree that the racial animus involved in a white society enslaving black people along with the supposed "curse of Ham" and "slaves by nature" pretexts used to justify the practice made the Atlantic slave trade particularly brutal even compared to other slave societies - again, not the norm. And all of that is even before getting into the American Declaration that all men are created equal and endowed by their Creator with certain inalienable rights such as life, liberty and pursuit of happiness.
Defending and normalizing slavery was definitely a challenge in 19th century America, which is part of the reason why (in the areas it was most thoroughly normalized) it became
not merely normal but a central cultural institution, such that various states seceded from the union and precipitated the reunification war not because Abraham Lincoln was actually going to abolish slavery - the Republican platform explicitly stated the opposite, and IIRC one of the negotiation offers early in the secession process was a constitutional amendment to
permanently guarantee the right to slavery in states where it already existed - but on the mere fear that one day it
might happen. Or at least that was the main pretext for secession, which also illustrates how culturally entrenched it had become.
The point is that the American Declaration of Independence is not now, nor has it ever been, a part of the LAWS that FOUNDED the United States of America.
Yes, that's what I said; slavery didn't violate mere laws, it violated far more fundamental human rights which "these united states" had formally declared were the very basis for governance and laws. It wasn't a crime against a government, it was a crime against humanity.
Mithrae said:
America should not exist (at least by its own formally-stated terms) if its government is one which treats Nazi-level oppression and brutality as just a minor misstep to be easily brushed aside.
TU Curmudgeon said:
Hyperbole will get you nowhere in a logical discussion.
The DoI states that it not merely a right but a
duty for such a government to be overthrown. Explicitly racist policies supporting the brutal enslavement of four generations of black Americans up to 4 million at a time (and a nationalistic vision to aggressively expand its lebensraum across the whole breadth of the continent) provide a remarkably close comparison against the scale of Nazi atrocities. And despite a hundred and fifty years of rhetoric and hand-wringing (by some citizens and politicians), in
practical terms those crimes against humanity have indeed merely been brushed aside as not warranting any restitution or accountability by the government which perpetrated them. If a murderer had never atoned for her crime we'd say that they should not be free, should be consigned to the same status as when they committed that crime; similarly America (at least by the formally-stated terms of its own justification for existence) should not exist and there is not only a right but a duty to overthrow its government, unless and until there is at the bare minimum some real and practical accountability for its greatest domestic crime. If there's any hyperbole there it's in the rhetoric with which these united states aimed to justify their secession from their legal government.
Yep, if their property had been confiscated at the time, that would NOT have been "retroactive" in the least.
Of course it would have been, not only retroactive but
individual retroactive punishment against slave-owners for their 'legal' actions. Unless (as happened in DC, and as you apparently wish had happened more broadly)
the slave-owners received reparations for the loss of their slaves while the former slaves received nothing more than a paternalistic helping hand to get on their feet, presumably all paid for by stealing more land off the Indians.
By contrast there's really nothing retroactive about the United States itself being held accountable for crimes which it perpetrated which were so grossly contrary to its own formal justification for existence.