Direct Answer
According to the speaker, the “good guys vs bad guys” story collapses when “we’re just as bad as the other guy,” so Christians can’t locate “good” simply in their nation’s cause; the transcript pushes listeners to question whose definition of “good” is operating.
Support from Transcript:If national righteousness is unreliable, what anchors Christian moral judgment? How do we avoid excusing evil just because ‘our side’ does it?