First, Superman talks about what the "all-American" astronaut believed in--"the things that he is certain of":
America, the greatest country on God's earth...
Culture? History? What the hell is that, a bunch of stuff your folks said you hadda believe in all your life? Does that make it real?
In response, I posted the following comment:
And different ethnic cultures are bad? Because bland WASPs like George W. Bush and Lex Luthor never do any harm?
Sorry. This exchange may be well-written, but I'm not feeling its message. Sounds to me like thinly veiled racism--the idea that white Christian America is superior to everything else.
As usual, Superman needs a multicultural perspective. He spends most of his time helping white Americans and little time help Indians, other minorities, or foreigners. If he weren't so biased and Eurocentric, it would be the other way around.
For more on the subject, see Giving Up PEACE ON EARTH and The Seminal Moment in GREEN LANTERN #76.