I don't understand the preference for debuting American girl groups over boy groups, especially by big kpop labels like JYP and HYBE.
Shouldn't their industry research give them the obvious idea that the pop music industry lacks a flamboyant boyish male popstar/pop group? I believe that's slightly why male kpop idols are still trending in the West even after the peak of the kpop boom.
On the contrary, the pop industry has plenty of female pop stars young girls and adults can look up to. It's a competitive market and hard to succeed. I don't see them even competing with other popular kpop GGs unless they have a 10/10 discography.
But imagine if there was a multi-racial boy group with tiktok fckboy visuals, one-direction singing talent and basic kpop BG dancing skills. International kpop bg fangirls would finally have idols they can understand linguistically and relate to culturally. Psychology suggests that most people tend to be attracted to others who share the same cultural/racial background. They can use this to their advantage to propagate the parasocial relationship between the members and the fans (a thing which kpop heavily relies on).
Overall, an American boy group seems like a safer bet and easier option than an American girl group. Not that these companies aren't planning to debut an American boy group in the future, nor am I saying they shouldn't debut any Western girl groups at all, but I would try out a Western BG first if I were in their position.