Blacks were considered 3/5 of a person in the census.<quoted text>
No, they were considered slaves. You are arguing this wrongly. The racist Southern view was that slaves should be counted as a full person to increase the political power of a slave owning class/region. It had noting to do with the personhood of the slaves, whose humanity was not even being considered by the players in this political maneuver. In no context that I consider important were black people considered 3/5ths of a person.
To which our resident bonehead, Carbon Johnny, states "In no context that I consider important were black people considered 3/5ths of a person."
Including the census? Which outrightly degraded blacks to a 3/5 a person classification?
I guess if Johnny is okay with killing babies, considering blacks less than human fits his mindset.
If immorality & disrespect for human life is okay, in one area, same is bound to be true on other/most areaas.