Rev. Joe: "Defending American Religious Neutrality"

Don't agree with (or try to parse) all of it, but Koppelman's views here (including the intro) has some good stuff, including the broad view of "religion."  See, e.g., opinions citing "questions of ultimate value and the contours of a good or meaningful life" and "matters of conscience as life and death, good and evil, being and nonbeing, right and wrong."