[Bubba Ho-Tep]

Why the Hell have they failed to introduce the 1948 British Nationality Act which clearly made “Jr.” a British Citizen at birth?

Because foreign law doesn't matter when it comes to whom the US considers to be or not to be a citizen.

[Rides3]

"Why the Hell have they failed to introduce the 1948 British Nationality Act which clearly made “Jr.” a British Citizen at birth?"

Because foreign law doesn't matter when it comes to whom the US considers to be or not to be a citizen.

False

It DOES matter. Read what the drafters of the 14th Amendment (the Senate Judiciary Committee) have to say about that:

"The provision is, that ‘all persons born in the United States, and subject to the jurisdiction thereof, are citizens.’ That means ‘subject to the complete jurisdiction thereof.’ What do we mean by ‘complete jurisdiction thereof?’ Not owing allegiance to anybody else. That is what it means."Congressional Globe

[Mr Rogers]