An association is more likely to win immunity from an antidiscrimination law, the more clearly its message is a discriminatory one. Boy Scouts of America v. Dale is in some tension with this rule, but the opinion is so muddled that it establishes no new rule to displace the old one.
Should Noncommercial Associations Have an Absolute Right to Discriminate?,
67 Law and Contemporary Problems
Available at: https://scholarship.law.duke.edu/lcp/vol67/iss4/3