Ah, what a great example of a thought terminating cliche, a statement that does what it says to save you from cognitive dissonance and nuance. You are clearly using chauvinistic as a pejorative, so you need to either justify how they're wrong or take it back and stop muddying the waters with your empty ideological language.
To be clear, I don't necessarily agree with op's statement. The US as a developed nation clearly has more opportunities and advantages than developing nations, but there are other developed nations that meet and sometimes beat the advantages the US brings. I'd argue the US is at least in top 3 of being the most successful nation in diversity and global influence, but other nations have better welfare programs, housing policy, and cultural aspects imo.