One of my favourite concepts in "late night" style comedy is when they test the censors by gradually incrementing something boring into something "unacceptable," whether it be language, the context of a sketch, or something graphic. And then once they've got the line they play with that line (eg. words/names that sound like "fuck", or Cecily Strong having sex with Bill Hader under a small throw).

One of the best ways to demonstrate how ridiculous and un-thinking this position is would be to do just that. If they "know it when they see it", just say "when!" as we systematically wax, outfit, camera angle, and contextualize this stereotypical, upper-endowed male football fan into a gorgeous female, who then slowly gets topless.