So an interesting test for that hypothesis is to repeat this same analysis on a different media form that is less exposed to a young, male, global citizen's prejudice and instead identify forms that are targeted at the type of audiences who are more ready to accept strong characters no matter their gender, race, sexual inclination, age etc... A few have commented that now the real art in moving pictures has moved to the big budget television series either made for networks or for stream services. If the transcripts for these products still show a bias towards a gender in forms that are targeted to a typically well off and educated, western audience, then we may still have structural bias.
They won't. At all. This is a known and done discussion - international television is a very different animal than international film and because of the licensing and ethnographic makeups of television, it's far more likely for a show concept to be exported than the show itself. Big Brother, House of Cards and other large, noteworthy shows are remakes, not exports and the media experiences changes to reflect the local environment. Even when shows are exported, what works in the US won't necessarily work elsewhere. Germans loved Baywatch, for example, and there's a lengthy Wikipedia article about recutting The Simpsons for foreign markets. But most importantly, TV reflects the gender bias of its viewers, who are mostly women.