I've experienced only the opposite. Americans love self deprecating humor but Yuros will literally cry about you "abusing my country" if you say one negative thing.
its also as if you're being disingenuous, because try to say that shit to some hardcore right wing patriots of any country and see how fast you get your faced caved in.
Make a joke about Americans being fucking idiots and don't expect Americans to laugh along. I mean what do you expect? Yeah we drink a lot of coffee and did slavery and use little creamer cups and eat lots of fried food and spend too much on our military. Americans, right? This? No thanks.
You mean the French with the white flag and baguette jokes? Spaniards with the lazy/siesta jokes? Italians with the pasta and pizza jokes? South europeans with the poor/debt jokes? Irish with the alcoholism jokes? British with their shitty food cuisine jokes? Swedish and their immigrant policy jokes?
Americans are not special. Each country has their joke topic, yours in a nutshell are about yall being very self centered, and it shows tbh.
jokes are funnier when they've got a nugget of truth i think. if the joke was about americans being fat and putting cheese on everything, or about how we're the richest country in the world but people die all the time because they can't afford basic medicine, i doubt there'd by any complaints. but saying that we can't speak any language feels less like poking fun at regional differences, and more like just, idk, lying for the sake of being cruel?