Fuxxprevious victims included, is partially responsible for any abuses that follow.
You argument comes from an idea you havent fully thought out. Let me start by saying I understand what youre trying to say. But its not correct and definitely not fair and disrespectful to the victim. The rapist does NOT get to place a responsibility on their victim to inform someone. That is, it is not a responsibility of someone whos been raped to prevent others from being assaulted. That responsbility to not rape someone lies solely on the person who did the rape - i.e. your argument is removing the responsibility of a rapists decisions. "His previous victim didn't inform someone so it's partially their fault" rather than "the rapists raped someone, they're a fucked up person" - which is what the correct response is. You see how the former is disgusting and removes responsibility from the rapist?
The one and ONLY responsibility of the victim is to take care of themselves and whats happened to them, however they deem fit. If they choose not to inform someone, then it is not acccustomed to them allowing someone else to be raped, knowingly or unknowingly.
Furthermore, this is someone who HAS been harmed, and you're arguing that this is irrelevant and they should ignore what's happened to prevent the POSSIBILITY not CERTAINTY that the abuse will assault someone else.
I will bet on it now that if you told someone who has been sexually abused that if they didn't inform someone of what's happened someone else will DEFINITELY be sexually assaulted, not a maybe, they'd do it in a heartbeat.