I commend you on your research and dedication.
Though I must respectful disagree.
Naruto is a shonen manga, its geared towards boys so of course there will be more boys than girls. Kishimoto is not a misogynist, he just doesn't know how to handle character writing for many of his characters and the females just happen to get it worse because there is less of them.
People say this exact same thing to Toriyama despite the fact that his first successful manga was about a robot girl.