So I just took a small sample (outside of major business districts) with Google maps street view dropping random pins in L.A. and searching for American flags. 0/3.
Same with Paris. 0/3.
I guess I got lucky? People can do their own samples and will likely see the inverse of my results.
Yeah, the pledge of allegiance is kinda stupid and has been cut from most schools at the start of the day. (That is likely regional though.) It's still kinda weird that sports events still leverage national anthems too.
Many people here see hyperpatriotism as kinda weird and is more closely associated with (the bad kind) of nationalism.
To answer all questions like this, it depends on where you go. Some places are worse than others. Culturally important cities tend to be much more 'murica than others.
Generalize much?