Back in 1989 someone suggested the following:
Nor does the Constitution seek to create a secular public sphere. Religious pluralism and diversity — not secularism — are the animating principles of the First Amendment. [Emphasis Tiernan’s.]
The article provides a piercing analysis of conflicts over the First Amendment’s clause, “Congress shall make no law respecting an establishment of religion.” Are we ‘excessively entangled’ in “excessive entanglement” concerns?! I’m not 100 pct. certain about this approach, but I think it raises necessary questions.