Religion at its heart is a claim to hold the ultimate truth. Christianity holds that truth to the exclusion of all others, with an eternal reward if you accept the truth, and eternal punishment if you do not. Such a worldview can never coexist with true freedom. It will always use its power to promote its truth claim either by the stick (Paine’s “fire and faggot”) or the carrot (Paine’s “traffic” or indulgences).