According to the authors of the 14th amendment, the citizenship clause was meant to be retroactive, to right the wrongs of slavery, not a forward motion statute for the world.
Supreme Court to Debate Birthright Citizenship Case.
Supreme Court to Debate Birthright Citizenship Case.
Because the notion that the 14 amendment was supposed to be retroactive only is definitely not captured in some of those quotes here by the senators who debated it: