Ann Coulter efficiently disposes of it:
As the court has explained again and again and again:
“(N)o one can fail to be impressed with the one pervading purpose found in (the 13th, 14th and 15th) amendments, lying at the foundation of each, and without which none of them would have been even suggested; we mean the freedom of the slave race, the security and firm establishment of that freedom, and the protection of the newly made freeman and citizen from the oppressions of those who had formerly exercised unlimited dominion over him.”
That’s why the amendment refers to people who are “subject to the jurisdiction” of the United States “and of the state wherein they reside.” For generations, African-Americans were domiciled in this country. The only reason they weren’t citizens was because of slavery, which the country had just fought a Civil War to end.
The 14th Amendment fixed that.
The amendment didn’t even make Indians citizens. Why? Because it was about freed slaves. Sixteen years after the 14th Amendment was ratified, the Supreme Court held that an American Indian, John Elk, was not a citizen, despite having been born here.
Instead, Congress had to pass a separate law making Indians citizens, which it did, more than half a century after the adoption of the 14th Amendment. (It’s easy to miss — the law is titled: “THE INDIAN CITIZENSHIP ACT OF 1924.”) Why would such a law be necessary if simply being born in the U.S. was enough to confer citizenship?
Even today, the children of diplomats and foreign ministers are not granted citizenship on the basis of being born here.
Anyone claiming otherwise is either a) ignorant, or as is much more likely the case, lying. Ben Shapiro and any other lawyer attempting to claim that the 14th Amendment establishes birthright citizenship should be disbarred.