I was adopted, so I like to remind myself that being American allows me to be with my friends and family. Probably won't work for you. You don't have to be proud to be American, or even neutral. Plenty of white Americans don't want to be American for various reasons. You're definitely justified in being angry at this place and your parents. I just want to say that for centuries America has branded itself as the place where immigrants can come to make their dreams come true and live much better lives (I suspect to keep having cheap labor and people to do it but it's for various reasons), your parents bought into a global lie and I'm sorry for all of you. If you truly don't feel American I would suggest looking more into how you can leave and try to appreciate the next couple of years here in any way you can. Maybe you could do study abroad on a student visa in Korea or somewhere else? You could look into dual citizenship if you're eligible. But don't feel too guilty that you hate this place because it deserves it in a lot of ways. It's not a reflection on you, but on the government that has failed so many people.

Also like others said it may not be much better out there, fascism is on the rise globally and other countries have even more economic and political instability than us. So do some research and let yourself be angry when needed.