WOW! How incredibly rude!
All Americans are not rich - they have set up a system that has enabled them to enjoy the fruits of much hard labor, unlike the other places you mention where it is simply stolen from them by that big one government.
Our nation is rich, while you or I may or may not be. We’ve been blessed by many things no one else has (the birth of Washington, Jefferson, Reagan, etc, a Judeo-Christian set of values, western thinking in terms of liberty, freedom, and so forth). Much of the world is impoverished and under the jack-boots of thugs and tyrants.
Our poor have cell phones and TVs.
Is it rude to point out we’re rich?