Those are the children's books version, and MoR is not a children's book, nor is most fanfiction. If you'll pardon the size of the hypothetical: If the Death Eaters actually existed, no way in hell are the males not committing rape.

I agree. My point was only that, in the context of the canon, having an 11-year-old boy talk about committing rape seems more jarringly unexpected — narratively, not inferentially — than having him talk about committing torture and murder (or having an adult Death Eater commit or talk about committing rape), relating to my point that the "Which of these characters has crossed the moral event horizon?" question was probably not relevant to people's actual objections.

(For the record, I'm not arguing the line shouldn't be there, and I don't disagree at all with your rationale for including it. I'm just trying to imagine the thinking of people who did react negatively to it.)