"...nor shall any State deprive any person of life, liberty, or property..."
The 14th defines citizens but it does not specifially define persons. Yet it speaks of "persons born or naturalized" in the US as opposed to person born or naturalized someplace else.
Its prohibitions directed to the states was therefore to include person born or naturalized anywhere. NOT THE UNBORN!
Nothing in the language of the 14th Amendment can be construed to exclude the unborn.
You cannot argue that the law does not apply as written because the historical circumstances which originally inspired it no longer have the same urgency.