>>6285761>would their males be as successful as they are without the females?In the literal interpretation of the question then of course not, because Nijisanji started by someone else aside from Mito wouldn't be as successful as it is now.
If the question is whether all Nijimales need to leech off (I kinda hate this phrasing because it makes interactions between chuubas look bad just because they have different numbers, and I don't think that should be the case) females in order to succeed? Not really. It's a case-by-case basis, and in most cases it's more about exposures because Nijifemales are more well known for a longer time than the Nijimales.
