Someone remarked on Facebook:
"Once upon a time, America had a long history of being the greatest force for good in the world"
That's a popular notion, especially here in the US.
On the other hand, many countries abolished slavery before we did. Health care and elder care guaranteed by the state goes back to the 19th century in some other countries.
Between the secession of Texas and the Mexican-American War about half of Mexico became part of the US. Ask around in Mexico about whether the US has been the greatest force for good in the world, and you might get some rather nuanced answers. And don't even start about Mexicans streaming into the the US illegally -- do I really even have to tell you? They're crossing the border into what used to be Mexico.
You could also ask a Native American what he or she thinks of the notion of the US being a force for good in the world. Etc.
We're not worse then other countries, we're not better either. And by the way, you people from outside of the US, like the one who answered that Facebook comment by saying that you are disgusted with us for "choosing Trump," and are "through with us" now? Way to stand by us in our time of trouble. Trump is definitely the worst President we've had, but he was elected with a minority of the popular vote in an election in which the Democratic Party had been deeply divided by Bernie Sanders -- just your kind of guy, I'm guessing: worse than useless, but always ready to complain about the shortcomings of others -- not to mention awfully persistent rumours of Russian meddling, and the number of Americans polled who say they want Trump to be removed from office is awfully close to half, and rising steadily. Yes, Trump is a horrible man, and he has given the US and the world some horrible problems to deal with, but we will get through this, even without your help, Mr I'm-disgusted-With-The-US-And I'm-Through-With-Them, although I'm sure that won't stop you and Bernie Sanders from taking credit for getting rid of Trump as soon as he's gone.
There is a lot of good and a lot of bad in the US. Like any huge thing involving hundreds of millions of people, the US is very complex.