Exactly. The question of allegiance was precisely the reason why the NBC requirement was introduced. It is impossible to believe that the intent of that requirement was to exclude offspring of two American citizens who just happened to give birth on foreign soil. And in McCain's case, his father was on active military duty and thus sworn to the constitution.
There's absolutely no question where his national loyalties lie.
Those pushing this absurd view are doing great damage to the case against Urkle knowingly or not is unclear. There are so many lies and mistatements such as this that most people are discouraged from even looking into this matter.