The point is quite clear and it is as follows: walking around naked or walking around with money hanging out of your pockets is in no way wrong and thus in no way either blameworthy or problematic. What is wrong and problematic is that there exist some persons who do inflict harm and injury on other persons. It is those persons that are the problem, not the persons who are victimized.
That's ****ing simple.
Now, I understand your reluctance to accept this most obvious of all moral points, because if you accept it, then you have to provide a new rationalization for certain functions of the state that you happen to like. Tough ****.
However, since I know you will push back, because you do not want to give up this 'common sense' position, let's move away from rape victims and move to casualties in combat. Since it is quite clear that one who joins the Army is joining with the knowledge that the risk of them being killed by another person greatly increases in such a profession, then, according to your 'common sense' reasoning, let's assert that all the US soldiers that have been killed in Iraq, Afghanistan, Vietnam, Korea, Europe, the Pacific, etc. are both blameworthy and responsible for their own deaths.
And, sure, you only said "share some of the blame", but, to share some of the blame is still to be blameworthy and to share some of the responsibility is still to be responsible.