The point of the 14th Amendment was to override state laws which would have worked to prevent former slaves from qualifying as citizens.
14th Amendment citizens are citizens of the United States. They are not natural born citizens of the United States.
There is not such thing as a "14th Amendment citizen." All the 14th Amendment did was wipe out any state laws that would have denied citizenship to people who would have otherwise been citizen, if it had not been for their race.
The 14th Amendment was passed for a very specific purpose.
So, once again, there are two types of citizens: naturalized citizens (who cannot serve as President) and citizens from birth (who can).
I see you have never bumped into the old-time patriot movement. If this thread keeps up, I expect sovereign state citizenship to come up.
Kinda surprised it hasn't already - most of those guys must be in jail for tax evasion.