Many of the leading bastions of America’s progressive Jewish establishment cling to a fundamentally misbegotten conception of what religious liberty entails in our pluralistic, but historically Christian-centric, constitutional republic. Consider the leftist Anti-Defamation League (ADL), which publicly declares its commitment to “safeguard religious freedom for all Americans by protecting the separation of church and state mandated by the First Amendment.” Consider also the far-left Religious Action Center for Reform Judaism (RAC), which similarly proclaims that “the principle of separation of church and state is best for both church and state and is indispensable for the preservation of that spirit of religious liberty which is a unique blessing of American democracy.”