I seem to missing something. As far as I could tell Volt was a total villainous bastard? The way the people in this thread seem to speak the women deserved what happened to them lol, where in the anime are the reasons they deserved it? That being said, I do not particularly like the sound of this game.
In anime? Not directly explained but you can guess from the way some of them acted that they weren't really man-friendly folks. In VN it was explained a bit more and you can consider Volt to be an actual freedom-fighter. In short : dark elves and humans were at war for hundreds of years. Human nation hired some mercenaries to fight as a cannon-fodder but they decided to rebel and form their own nation. You can think of him as some sort of Osama bin Ladin of this world - supported by one power to just turn on them at some point. Also, Queen Olga of the dark elves was in fact a rather cruel ruler to her subjects and her enemies - she allowed and even encouraged her monsters to rape, torture and kill others. She's actually a true villain here!
Also, you've surely noticed that all women in this world are total prudes. Sorry but in the feudal society it's not a good thing and it would sooner-or-later result in the similar rebellion or at least a huge crime-wave from the male population(look at Chloe). Remember, sexual prudery is just as bad as a sexual promiscuity - both of them lead to the destructive behaviour. Feudal society is the one where "might makes right" and most females are simply too physically weak and lazy(some people prefer the term "easygoing") to actually make anything of value in such a hostile setting. The "easygoing/lazy" part is why they didn't make any effort to actually deal with the problem when they could. If they did, the male population wouldn't have joined Volt's rebellion at all. What makes things really unbelievable is that the male population allowed females to have any decision-making role in such society. It shouldn't have happened at all! I believe it was forced on them by magic users (mostly females), that's the only explanation I can think of.
And before anyone starts throwing any accusations: no, I don't support such behaviour but I know that you can't fight with the facts and you should take your SJW crap elsewhere