Another may be, as you said, hopelessness stemming from the abominable way they are treated. And of course, they may even volunteer for such barbarities out of the same religious conviction that drives Muslim men. But more likely they have been coerced and convinced into doing so, like the rape example I gave.
Examples of the seethingly hateful nature that has been injected into Islamic fundamentalism are voiced every day by their own sheiks, mullahs, and imams around the world. It is arguably the most dangerous form of religious extremism out there due to its intense infatuation with honor, death, and Paradise. Fathi Hammad, an MP of Hamas, said it best in February 2008:
“[The enemies of Allah] do not know that the Palestinian people has developed its [methods] of death and death-seeking. For the Palestinian people, death has become an industry, at which women excel, and so do all the people living on this land. The elderly excel at this, and so do the mujahideen and the children. This is why they have formed human shields of the women, the children, the elderly, and the mujahideen… It is as if they were saying to the Zionist enemy: ‘We desire death like you desire life.’”