Whose interests are served by denigrating polytheists, or agnostics, or atheists, or even Pastafarians? Who could logically or in good faith disagree with "und

Whose interests are served by denigrating polytheists, or agnostics, or atheists, or even Pastafarians? Who could logically or in good faith disagree with "under God" as the establisment of a monotheistic religion, with the US flag as its idol?