except diplomats who are under the jurisdiction of their own country, children born on our soil, are US Citizens.
The 14th amendment could have easily stated those born of citizens or those born of only legal residents, or mentioned this was for newly freed slaves only....
BUT IT DIDN'T.....
It stated all children born, on our soil, under our jurisdiction, are citizens.... foreign diplomats are NOT under our jurisdiction, so THEIR CHILDREN are not US Citizens... diplomats are not under our jurisdiction, they have Diplomatic Immunity in the USA.
It was important in the 14th that ALL under our jurisdiction born on our soil to be included, because we had millions born on our soil with Scottish, and Irish, and Italian decent etc....that were not US citizens themselves....
or even here legally
and if the 14th were interpreted in any other way than what it was, the children of all of those white immigrants, would lose their citizenship.... and America was trying to POPULATE the nation and get more Europeans to immigrate here... and the one way we did this, was by making the citizenship of their children easy, through jus soli citizenship.
https://www.history.com/news/birthright-citizenship-history-united-states
The executive order or a new law by congress to change the 14th amendment would be challenged immediately as being unconstitutional... and would make it to the Supreme court on that challenge, for the Supreme court to re-evaluate, but I see no way the Supreme court could rule any differently that they have previously on the decision of what the 14th amendment meant....
and it would still need an amendment to the constitution to change it.