The people of Japan, South Korea, West and then East Germany, Taiwan, Georgia, Poland, Ukraine, Czech Republic, Slovenia, Slovakia, Hungary, Rumania, Albania, Latvia, Estonia, Lithuania, various ex-Soviet Republics (some mentioned already), etc. all wanted democracy and these are the people who thank America. My Japanese friends still say that if it weren't for Hiroshima they'd be a North Korea now.
Let's not forget the people of Nazi occupied Western Europe and the people liberated from Japanese occupation who ultimately won their independence.
Of course some apartheid supporters will disagree.
As for forcing Christianity onto other people, that has never been a missive of the US government. Care to cite a US .gov site where it's been the mission of the US foreign policy to enforce Christianity. They really Chritianised Japan and Taiwan.