The USA is not magic dirt. Nations are people.
If you want to live like Haiti, bring in Haitians. They won’t become Americans, they’ll just make America more like Haiti. Which, if you are honest with yourself, is exactly what all the Germans did too.
If you were granted the magical ability to decide America’s immigration policy, it would be simple for you. Look at the people you woudl like to live like. And import them en masse. Because eventually those people will bring America to their level. Either up or down. (And yes Suzy, many cultures can bring America down).