I read this article that claimed that unpaid internships were a gendered issue. The sole justification for the claim was that three-quarters of unpaid interns were female.

Clearly this doesn't make much sense. Online poker is over 75% male, but no one would call banning online poker a "gendered issue."

So - what do you think qualifies something as a gendered issue?

To me it would involve something that is expressly targeted towards a specific gender, say abortion access, or the fight to maintain the legality of male circumcision.