Tax Exemptions For Churches

Eugene Volokh challenges a common criticism:

[If] you oppose all tax exemptions for nonprofits (and for contributions to nonprofits), or for all nonprofits that specialize in speaking such as advocacy groups, schools, universities, public radio stations, and churches then churches would naturally be included in your opposition. But so long as charitable nonprofits, under a very generous standard of what constitutes a suitable charitable purpose, are tax-exempt, the same would cover churches.