Re: 150 - American Indians are a unique situation, as the U.S. Government negotiated treaties with essentially indigenous nations. And some treaties conveyed citizenship such as the Treaty of Dancing Rabbit Creek. And “Indians not taxed” were excluded from citizenship via the Civil Rights Act in the late 1860s. Then there was the Dawes Act which tied citizenship to land alottments. All very interesting.
Both slaves and Indians were exceptions to the "born here you are a citizen" rule. So were the Chinese until Wong Kim Ark.
The English law rule was created simply to dragoon as many people into the service of the King as was possible. It was only intended for Monarchical power, it was never intended to govern a Republic.