He hits the nail on the head- IMHO
"In the first place, we
should insist that if the immigrant who comes here in good faith becomes
an American and assimilates himself to us, he shall be treated on an exact
equality with everyone else, for it is an outrage to discriminate against
any such man because of creed, or birthplace, or origin. But this is predicated
upon the person's becoming in every facet an American, and nothing but
an American...There can be no divided allegiance here. Any man who says
he is an American, but something else also, isn't an American at all. We
have room for but one flag, the American flag... We have room for but one
language here, and that is the English language... and we have room for
but one sole loyalty and that is a loyalty to the American people."
Theodore Roosevelt 1907