Bayard clearly said:
It is only requisite that he should be a citizen by birth.
Wrong again. I have seen people take things out of context to prove a point. You have taken that a step further. You put a period where a coma should be and then leave off the rest of the sentence.
, and that is the case with all the children of citizens who have ever resided in this country, though born in a foreign country.
That is where he describes what it takes to be a citizen by birth. All the children born of citizens who have resided in this country.
Obama, Cruz, Rubio and Jindal all fail that requirement. BVB
Okay. And that is the case with all the children of citizens who have ever resided in this country, though born in a foreign country.
But that’s not the main and controlling idea. That is a following thought, an EXAMPLE of Bayard’s main point. It’s not a qualifier. It’s a consequence of the main point.
This is basic English. Go and ask your English teacher.