On November 3, the Supreme Court will hear St. Mary Catholic Parrish v. Roy, which squarely presents the question of whether the Constitution authorizes discrimination by religious schools. | Kent Nishimura/Los Angeles Times via Getty Images For years, the Supreme Court has flirted with the question of whether religious conservatives may simply ignore laws prohibiting discrimination against LGBTQ Americans. The Court’s Republican majority frequently rules in favor of business owners and institutions that refuse to serve gay or trans people. But these cases often rely on ad hoc reasonin...