I won't let it slide. Article 1, Section 10 is completely irrelevant to this discussion as it speaks of limits on state governments, not the federal government.
While there is doubt on the legitimacy of the ratification of the 16th Amendment, it DOES amend Article 1 in that it grants Congress the right and power to tax income without any regard to population or apportionment. Congress was granted a power originally denied. It's really that simple. Later cases, such as Eisner v. Macomber in 1930 uphold the 16th Amendment supercedes Article 1 and grants Congress additional powers not originally granted.
I guess since the words were never amended or repealed, a black person is still only 3/5 of a person as well
