“You’ve tried to argue that there are only and have been only two typesd of citizenship. This is false since we know—for example—that at one time Black people were considered at least a third type of citizen.”
Wrong. Black people were considered property. They had no legal standing as citizens. What you are probably referring to is the infamous “three-fifths clause” of the Constitution, which says:
“Representatives and direct Taxes shall be apportioned among the several States which may be included within this Union, according to their respective Numbers, which shall be determined by adding to the whole Number of free Persons, including those bound to Service for a Term of Years, and excluding Indians not taxed, three fifths of all other Persons.”
Notice how it says “persons,” not citizens. Never and nowhere were slaves considered citizens.
If Dred Scott had had no degree of citizenship, he would never have made it to the Supreme Court. Is that correct?