Where is it written that if you don’t like religion you are somehow disqualified from being a legitimate American? What was Mark Twain, a Russian?

Hendrik Hertzberg (b. 1943) American journalist, editor, speech writer, political commentator

“Antidisestablishmentarianism,” The New Republic (1985-09-16)
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Reprinted in Politics: Observations and Arguments, 1966-2004 (2005). Responding to a speech from William Bennett, Secretary of Education, about liberals having an "aversion to religion," thus requiring government promotion of "Judeo-Christian tradition."