Culturizing America

"God Bless America", why on earth are we deserving of a blessing from God?  Not only do we infect other countries with our sometimes odd customs, but we refuse to take on the customs of other countries, at least not without modifying them greatly.  We are becoming a country of exports only.  When immigrants come to America, we expect them to know our language, and learn our customs, and yet when we go to other countries we still expect them to know our language and customs.  Almost all European countries have a higher rate of bilingual citizens that the U.S.  Shouldn't we be a bilingual country?  Why do we shy away at other customs?  Why is it so odd for someone to be different? Isn't that what America is about?  Shouldn't we be encouraging diversity?