Both the Idol culture supporters here and the Idol culture haters from the outside don't really understand what it means to be an actual idol.
Actual IRL Idols do have interactions with males such as interview shows, commercials, talking to male security guards so they can be protected from any weird male idol fans during meet and greets.
But at the same time unlike what Idol haters thing the girls signing for this aren't forced into slavery or some shit, they know what they are getting into when signing that shit, the number of movies and documentaries out there show what it means to truly be an idol and these girls still sign up for that, it's like any other job that has its set of rules and having and on screen relationship with a opposite gender is one of those that is clearly well known to even a fetus.
You don't want the girls to become idols, you want them to become your personal slaves GFE trapped in a cage, while the assholes from the outside just want them to be turned into the average boring twitch whore who does chaturbate level shit on streaming yet still gets away with it.
Both sides need to learn what it really means to be an idol.