Actually, it's an opinion. You're welcome to disagree with it. You're welcome to argue with people who agree with it. But you're not welcome to suggest they aren't allowed to express their opinion on the subject here on GAF.
We don't get to decide what other people think of our hobbies or the media we consume. We make our choices and we live with them within the construct of the society we inhabit. If we love things that other people find repulsive, they are likely going to say something about that. You can disagree with them, of course. Society is a constant push/pull between opposing cultural forces, and this is certainly an area where there's a bunch of push/pull.
I don't think that titillation is inherently wrong, but some kinds of titillation certainly do offend people. And it's perfectly okay for them to be offended and to recommend action, up to and including a call for a boycott. This is not remotely limited to video games. It happens with all forms of creative expression. Someone makes something, some people like it, other people hate it, they discuss it, the cycle continues.
What I see in this thread, repeatedly, is the cry "let us enjoy what we want, no matter how repulsive you find it, without saying anything or drawing judgements about us."
That's simply not going to happen.