And what part of "out of context" do you not understand? Why don't you to quote the sentence that comes right after those elipses of yours?
It’s not out of context. The elipses left out these parts. Which part of that context do you believe changes anything??
“At common-law, with the nomenclature of which the framers of the Constitution were familiar, it was never doubted that ...
... as distinguished from aliens or foreigners.”