I have talked to actual women who tell me this. Why do you, as a guy, feel qualified to invalidate their experiences?
I don't think Adira felt immediate fear for her physical safety, no. But I do think fear of sexual harassment and sexual violence are an important reason why it is very important that "harmless" sexualization of professional situations isn't harmless at all.
Adira was perfectly within her rights to complain to the conference organisers about rule breaking behaviour that was annoying her. The twitter shaming and blog post about harassment was a bit overboard though.
What you're doing, though, is taking one issue and turning into a much more "serious" one (I use that term loosely, neither sexual discomfort nor sexual violence should be taken lightly).
Yes, sexualisation of professional situations is a problem (at least, it quite often is). As I noted, this applies to both male and female top-heavy environments. But the issue isn't really about fear of sexual violence, that simply does not match up with reality.
I agree, some women are sensitive to these sorts of conversations. And they can be triggers for them which lead to fear. But more important is the much larger majority of women for whom this conversations "merely" (again, using the term loosely) degrades them as an individual.
Hence me objecting to your casting of this issue as a major problem r.e. threat of violence. 99.9999% of the people making these comments are not about to commit sexual violence, and the vast majority of women (and, yes, men) being subjected to it are not in fear for themselves. By casting it as you have, you've undermined the issue.
And you're initial phrasing itself sounded patronising and degrading (although obviously not your intention).
EDIT: p.s. it's Adria not Adira.
Kudos for trying though.
Here's a bit of free advice :) when you start to use this argument, consider that perhaps you've run out of good rhetoric.
You seem a decent enough guy, if a little clueless, so I'll give you more advice if I may. Making lewd comments certainly might make others feel uncomfortable (male or female), but the fear factor comes from attitude and presence, not the words.
For example; had these two guys been leering at Adria. And staring at her, deliberately raising their voices to project their jokes to her hearing.. that is the sort of behaviour that starts to become frightening.
No one has suggested this is the case. They made a joke between themselves, that made Adria uncomfortable. That is a far cry from her fearing for her physical safety.