That's the big issue, it's socially accepted as something that needs to/should be done. Even now sati (http://en.wikipedia.org/wiki/Sati_%28practice%29) is practised in parts of India, thankfully to a tiny extent but it does still happen.

As a species we do some appalling things to each other, they're all justified one way or another in the eyes of the perpetrator.

I'm not saying that muslim countries don't have issues that need addressing, just that a lot of them aren't directly related to the fact that they're muslim.