Look, .lava, you're still arguing the point of interpretation. I've already conceded that this kind of behaviour might very well be a corruption of what Islam is or is supposed to have been. It is not what you believe as a Muslim and it is not what you think Islam is, right?
But this is true of any group of people doing anything, anywhere, at any time. You could argue, for instance, that Sarah Palin isn't really a Republican problem, since she is not a "true Republican", that paedophilia within the Church is not a Christian issue - those can't be "true Christians" and there is nothing in the Bible that says you should molest children, etc...
Plus, when I have a Muslim telling me that those who follow the Hadith are wrong on one side and another Muslim telling me those who reject the Hadith are not true Muslims on the other, I can't really do much about it. What I can say, whatever the truth of the matter might be, it is a muslim problem. Both sides claim to be the true representatives of Islam. Both justify their actions on what they claim is the correct interpretation of their religious texts.
What you're trying to say, I think, is that this kind of thing has nothing to do with your belief system (which is completely clear and the only position a rational person like you can have on the issue). You want to have the "trademark" of "Islam" and not allow others to use it. I can assure you, those who follow the Hadith and claim to be Muslims are just as sure that it does not contradict the Qur'an as you are that it does. This is a problem that all ideologies that try to base their lifes on the "correct" interpretation of texts they believe are authored by a divine authority have. There is no "correct interpretation" anymore than there is a correct interpretation of The Lord of The Rings. You can get as close to knowing what the author meant to say as humany possible, but you'll still be as far from it having any actual value as regards to the real world as you were before. And I won't be able to tell who the "true" Tolkien fan is. As long as there are some Tolkien fans around that keep waving their Lord of The Rings books and trying to bite people's ring fingers off, this is going to stay a Tolkien issue, no matter what the original intent of the author was.