I dunno, I often interpret such remarks as "I'm not afraid of X; why are you?" Sometimes they're obviously presenting another datapoint in response to the "everyone feels X" remarks, but sometimes it seems more arrogant, or, frankly, clueless than that. Having not encountered those remarks in this specific context, it's hard to say.

But for a woman to say she's never ever felt concerned about being potentially assaulted? I really don't grok that mindset. Have they walked city streets at night? Have they walked unaccompanied into an unfamiliar bar full of drunk men with no women in visible sight? Have they been the only female walking the street in front of packs of young men hanging about with no apparent purpose? Perhaps they have, and perhaps they haven't.

I agree that body language can help with the aimless groups of young men, or the occasional drunk. For the rare nutter who is on the prowl for an assault victim, or the person you think you trust who suddenly turns a date into a rape, not so much.

But I agree that if a woman has genuinely never felt at risk of assault, she's very privileged. It shouldn't have to be that way.