When it comes down to it, and you get past all the B.S., we are doing good in the world. We keep peace, we feed the hungry. People may not like what we do, but I'd we didn't do it, who would? How many wars would there be?

Dont really care. In the grand scheme of things we're just a speck in the Universe.

The United States will be renowned as the last empire. Once it collapses, I don't think people are going to want big macro-states, and we will go through periods of minarchy and statelessness.

I don't think the USA's reign will be as long as the other civilizations you mentioned, but they are a military powerhouse, much like Rome was, and they have made several notable contributions (ie: The Atomic Bomb's conception will not be forgotten; neither will dropping it on Japan). Feminism and movements against racism will also be remembered I think. I think American culture will be written down and remembered as well; and while Hollywood and modern technological lifestyle does not seem as cool as the Romans did, it will still be notable history in 500 years. There are probably other examples too; I think Lincoln will be remembered, as well as some other prominent Americans. Who knows what else will happen in the next 500 years?

Also "America" will still have an identity after the U.S empire collapses, just like it had an identity before the U.S Republic was created. Many celebrities: political and otherwise will still be known.

Computer, Barbecue, Cars, Planes, Porn, Hologram, Xbox, American Football, Basketball, etc... will never be forgotten.

it will be remembered as the shortest powerful civilization ever made in human history and less contribution for humanity.

Holy crap you must be a little too patriotic to even come up with this shit lol. What are you saying, the US should conquer half the world and be renamed the empire of the united states, just so it will be in the history books 500 years from now?

https://www.youtube.com/watch?v=IhnUgAaea4M

We will be remembered as the mightiest empire the world, up to this point, had ever seen. Sort of like the Romans before us.