It's powerful due to having the largest military in the world.
As of 2018, the richest country in the world is Qatar.
The United States is pretty advanced, but it's second only to Japan, which is well-known for it's innovations in science.
And fantastic? ...Don't make me laugh. If you really think this country's "fantastic", then you haven't been paying attention to the news. That, and you haven't brushed up on your history, because most of what's happened in this country isn't fantastic in the slightest.
I know you're mad I insulted your home, and you likely won't respond to this since you've so problem ignoring the things that prove you wrong... But don't waste my time trying to defend the United States, because I'm not going to care.
You're lying to yourself if you seriously believe the United States is this great, amazing country, just because it has power and money. Many other countries all across the world hate the US for a reason.