Handy hint: "we are the only free country" is not a literal quote.
Incidentally I just learned that Brazil just completed, like, the most impressive census anywhere ever. So there's a new thing I know.
But I never heard even things with that motif.
Quite the opposite. Americans are very fond of making fun of themselves; they'll constantly mock their culture, political institutions, etc. OTOH in some countries (particularly small countries) the nationals will vigorously defend everything about their country when talking to foreigners.