Why are Islamist Extremist men so afraid of women? (boo!)

I just read that Boko Haram, the kidnappers of more than 250 girls, claims the girls converted to Islam.  Kidnapping and terrorizing is a bizarre way to get converts, right?

But adding to that, why are Islamic Extremist men so vicious towards women? girls?  The Taliban is awful to women as you know. Why don’t these cowards just ‘man up’ and leave women alone?