Why does arch-liberal Fred Phelps of Westboro Baptist h@te the USA so much?

Fred Waldron Phelps, Sr. (born November 13, 1929) is an American pastor heading the Westboro Baptist Church (WBC), an independent Baptist church based in Topeka, Kansas. Phelps is a disbarred lawyer, founder of the Phelps Chartered law firm, a past civil rights activist in Kansas, and a Democrat who has five times been a candidate for political office in Kansas Democratic Party primaries.