It’s not hard to understand ‘why’ if you understand the ‘cloth’ that he’s made out of.
ZERO views himself not as past Presidents have. Those who have viewed themselves as a continuation of ‘American Exceptionalism’ (although to a much lesser degree shown in past Democrat Presidents like Carter and Clinton).
No. ZERO views himself as being something completly ‘different’ and ‘representing a complete break’ with that belief. Thereby ‘rejecting’ the past view of what represented American Exceptionalism - and interjection his own ‘view’, i.e. all of the APOLOGIZING’ he has embarked on for perceived ‘WRONGS’ by him and anti-Americans throughout the world.
Right - it would be like the Bolsheviks defending the Czars - not gonna happen.