The problem lies in the definition of the
United States. Generally in legal circles,
United States means the 10 square miles of D.C., and the forts and other lands that have been ceded to the U.S. Government, as the Constitution says. The 50 States might have U.S. Gov lands in them, like national forest and wilderness lands, but these have never been ceded to U.S. Gov. So, they are not really part of the
United States.What this means is that people who have been born somewhere in the 50 States, but were never born on Federal Gov ceded land, are not, and never have been, United States citizens by birthright. All that Trump is doing is bringing this out into the open.
Why is Trump bringing this out into the open? To free us from the authority of Fed Gov. As citizens of one of the 50 States, we have all the rights of Fed Citizens. But we have lost freedoms because of the 14th Amendment that is essentially making us slaves of Fed Gov. If we aren't citizens of Fed Gov, we still have the rights, but without 14th Amendment requirements to obey Fed Gov laws while we are within one of the 50 States.
This is a benefit to us. It lets local people rule themselves, rather than being ruled by the Federal Government.
Why do non-U.S. people who were born in one of the 50 States have the rights of Fed Gov? Because all 50 States in their Constitutions state that they also follow all the tenets of the U.S. Constitution.