And we should celebrate it for the civilisational advance that it is, promoting it all over the world, instead of continuously attacking its legitimacy.
We have long rejected the idea that blood should dictate your social position in the tribe; but somehow we cling to the idea that it should dictate whether you belong to the tribe at all. Why? It's not with this mindset that we will reach the stars.
> And we should celebrate it for the civilisational advance that it is, [...]
Well, as far as I can tell, it's only in your constitution sort-of by accident.
They didn't put this 'advance' in original, it was just the simplest and most face saving way to free the slaves without directly mentioning slaves in the text. (Compare the 3/5 compromise for 'other persons', which also avoids mentioning slaves by that term.)
We have long rejected the idea that blood should dictate your social position in the tribe; but somehow we cling to the idea that it should dictate whether you belong to the tribe at all. Why? It's not with this mindset that we will reach the stars.