Sorry, you're entitled to your own opinion, but you're not entitled to your own facts.
The Constitution says no such thing. First, the word parent(s) isn't found anywhere in the Constitution. Second, it wasn't until the 14th Amendment was passed, did the Constitution say anything about citizenship.
The 14th reads, in part...
All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.
Do you see the word "parent(s)" in there? Nope. That's why we had US. Ark.
The Constitution, by omission, leaves it PLAINLY to the Congress to establish criteria of citizenship. Congress has asserted that authority a number of times throughout the history of the Republic.
I should clarify that I meant when the Constitution was initially authored. Clearly, the 14th Amendment limits to some degree Congress's ability to define citizenship.