Citizens and "natural born citizens" are not the same thing. As Kamala gets her citizenship *ONLY* through the 14th amendment, she is a naturalized citizen.
She was granted her citizenship *ONLY* through USC 8 Sec. 1401.
She was born after the INA was passed in 1952.
Article 1, ยง 8, clause 4 and 18
Establish a uniform rule of naturalization
Make laws to carry out other powers
USC 8 - ALIENS AND NATIONALITY