According to much current law and theory, a public accommodation that offers a good or service to one customer cannot refuse to provide that same good or service to another patron simply because of the latter’s identity. Thus, in many jurisdictions, reception hall owners must rent their spaces to both a Black Baptist Church and the Christian Identity KKK, wedding vendors must sell their goods to a marrying couple no matter the sex of the couple’s members, and foster parent agencies must serve same- and opposite-sex parenting duos alike. Call the principle underpinning this policy the “Equal Access” principle: The principle holds that a vendor can choose the products he sells but not the customers he serves; equally, a public service agency ...