[Gandalf the Mauve]

But there's a HUGE difference between the circumstances of their births.

Yes; McCain was born in a US facility.

[ROCKLOBSTER]

McCain was born in a US facility.

No, he's a Colon baby.

[Elderberry]

Yes; McCain was born in a US facility.

No. According to the birth certificate and COLB of John McCain, McCain was born in Colon Hospital, city of Colon, Panama.

That is not in the Canal Zone.