Lots of Americans in the notes failing to understand this post. It's not about not liking the US. It's not about you feeling ashamed or guilty for being American. It's not about you.
It's about American media drowning out native language media all over the world, and workplaces requiring the English language in your repertoire more and more. It's about proper translations and foreign language dubbing of films disappearing because "everyone speaks/should speak English anyway." All of this is leading to the deterioration of native speaker groups of languages worldwide.
In my country, Dutch language courses can't find enough people who want to study the language, while English language courses are overflowing with people who want to study the language. There is even widespread distaste for the Dutch language for being crude or sounding rough or what have you. That's our native language!!! That is our culture in its purest form!!! That is knowledge we inherit from our parents as they did from theirs!!! That is how we learned fairytales and folk stories and myths!!! That is the language that shapes our communication and our way of thinking!!! To hate your native language is to hate yourself at the deepest level.
And yet it's so normalised. Droves of foreigners living in the Netherlands will never learn a word of Dutch, because "everyone speaks English anyway." We are the world's leaders in non-native understanding of English, but it comes at a cost. A grave cost we will continue to pay.
If you're looking to support your non-American friends in any way that is not performatively shouting "I hate being an American" into the void, first of all, unlearn that hatred of yourself and your culture. You are of no help self-flagellating, and there is a difference between holding your country accountable for its issues, and denying yourself your culture because your country is doing and has done bad things.
(I am not going to get into arguments about whether or not US American culture exists. It does, and if you think differently you are welcome to change your mind.)
Secondly, learn about other countries. Learn a bit of Chinese. Take an interest in the Italian political system. Ask your friends about their countries' folklore. Watch documentaries about art from Nigeria. Absorb information that is not fed to you by American media.
And thirdly, quit expecting your non-American friends to communicate in a way that appeals to you. The French and Dutch will always seem rude to you because our way of communicating is far more direct than the way you communicate. People from other cultures may seem vague to you because their way of communicating is far more indirect, and you're not used to that either. Quit being frustrated when you don't get what we mean exactly. Quit assuming we mean the absolute worst thing you could imagine just because you didn't get what we meant the first time. Ask us to explain if you need us to, and learn to accept that we are different from you.
We are already adapting to your culture 100% of the time we are online. It's your responsibility to adapt to us, too. At least do your friends the courtesy of learning about and adapting to them.