Yeah this is good thinking. Huge quantities of western people are consuming k-pop, anime and other japanese content because it defies common gender roles and behaviours. This content is finding a market that is not being served by western entertainment and media for a reason -- they've intentionally avoided serving it.

It WAS being served, back when the pop industry had a huge boom of boybands. Then it dropped off a cliff. Why? Not because it wasn't making money, it definitely was.

There are a few that pop up now and then (One Direction/Jedward) but none of them cross the line to step outside of societally defined roles, and if they do walk on that line like Jedward then they do so while simultaneously putting on a dramatic act that makes it clear there is an act going on.