Go to any book store and look at how much more manga is for sell than comics.
It's not just Manga either. Asian media is breaking out in all forms. The anime real life adaptations in Netflix are getting good. Way better than I expected.
As it turns out people like having a strong male protagonist who saves women and children with strength and intelligence.
People like character growth more than Mary Sue.
They aren't racist or the fact that the characters are Asian would bother them.
People like adaptions that Honor the source material.
Not superman sucking a dick and getting beat by a woman for political points.