Worked fine? You still have the death penalty, you have the world's stupidest gun laws, you had racist segregation until 50 years ago, you've been absolute bastards to Cuba, lynchings were de rigeur until the early 20th century, you had McCarthy, you wiped out the buffalo, you've been the prime mover par excellence apropos of global warming, you destroyed native American culture and your foreign policy would be a bloody laughing stock were it not so tragic. Could you explain to me what part of "worked fine" I don't understand, please?