Patriotic display as coercion
When my cousin Rudy left Cuba under the Pedro Pan program in the early 60s, he came to live with my family in Florida. On his first day at my high school, he was astonished by our morning home room ceremonies, the Christian Protestant prayer (in those days it was mandatory), and the Pledge of Allegiance (yeah, with the "under God" part included).
His comment to me later was "Protecting me from this kind of political shit is exactly why my parents sent me out of Cuba in the first place."
Genuine love of country is a common and noble emotion. But the forms and rituals of "patriotism", as we usually understand the term, are just a way to keep people in line.