They are not trying to overturn the 14A, just get back to it's original meaning.
That is just total ignorance. Sure, you are not going to get into the debate over the 14th amendment in elementary school history. And you are just going to touch the 14th in high school, even an AP US History class.
The Congressional Globe contains the records for sessions of the U.S. Congress including summaries of proceedings, letters, speeches, and some legislation for the Senate and House of Representatives.
digital.library.unt.edu
But there it is, "original intent". Senator Jacob Howard, of Michigan no less. ERRR. After the Civil War, Michigan, North Carolina, yeah. The amendment means exactly what it says. If you are born here, no matter your race or the status of your parents, you are a citizen. He clarifies that, firmly.
This whole "subject to the jurisdiction" is five hundred year old diplomatic speech because it is the children of foreign diplomats, diplomats that are not "subject to the jurisdiction". And it was native Americans, born on reservations, their parents were not subject to the jurisdiction of the United States. They achieved their citizenship status through an act of Congress, decades after the 14th.
I mean this question was asked, and answered, way back in the beginning. To claim some other meaning to that jurisdiction clause is historical revisionism in the highest degree. The only possible argument is that those Hispanics crossing the border are an invasion force, laughable on its face. Besides, hell, ain't that what we all are? Outside Native Americans, didn't we all "invade" this continent? The Pilgrims and Puritans, the Irish, the Germans, the Swiss. Yeah, the Swiss. French, Spanish, Jewish, Muslim, they all "invaded".
And this birthright citizenship has been tried in the courts, many times. Jus Solis, in the purest form, has been the long standing understanding. At the time, it was groundbreaking. Today, not so much, dozens of countries have adopted it. Any attempt to eliminate birthright citizenship is a direct attack against the Constitution, and against the very foundation of this country.