But perhaps this theoretical man is seeking for himself some kind of outside sexual validation from a woman that he sees and finds attractive? How would you suggest that he obtain it?
By being desirable. And, by that I mean, you know, not cat-calling. Or objectifying women. Or imposing his desires and needs onto a complete stranger and/or a woman who just isn't interested.
Instead, he should simply be a decent human being. Take care of himself (basic hygiene and health). And have something legitimately interesting intimacy to offer someone else - and, here's the thing:
intimacy isn't just physical. It's intellectual. It's emotional. It's creative. It's spiritual. I once had a guy friend bemoan to me, "I just want to be desired." I get feelings of loneliness and self-doubt. Believe me, I've been there. But my response him was: "Then do something to be desirable." Find a passion. Genuinely make the lives around you better (and, hint, cat-calling wasn't going to make his, or anyone's else's life better). Find out who you are, and be confident and comfortable with who you are. Have a life worth sharing with someone else. (And who wants to share a life with someone who cat-calls, or commands a stranger to smile. Seriously, that's really a bizarre, unsettling attempt to establish dominance).
Do that, and people will find this "theoretical man" interesting, in general. The more people who do, the more chances there will be a mutual attraction between the Theoretical Man and someone who finds him interesting. In the meantime, Theoretical Man™ gets to live a more interesting and fulfilling life than bemoaning why da wimminz won't validate his sexuality despite his repeated, and without permission, intrusions upon their business and personal space.
he is also inherently offering something expressly personal at the same time.
No. He's not offering anything other than the intrusion. Full stop.
Asking for sex, although often done in a very vulgar fashion, is treated as an unwanted intrusion even in concept.
Something vulgar, done in a vulgar fashion, is treated as an intrusion? Whaddya know!
Yeesh.
Women ask to be respected and yet treat the sexual desires of men with contempt. I can understand why they wouldn't like the expression that it takes but there seems to be an underlying hostility towards male sexuality at all.
No. Women (as if there's some monolithic entity that speaks for all women) do not, in general, treat the sexual desires of men with contempt. They do, however, treat the repeated, unwanted and vulgar (your term) intrusions with contempt. It's no surprise that anyone would develop hostility after such repeated, unwanted, and often dangerous vulgarities.
And when a man tries to examine the other side of a male/female issue that has been almost exclusively examined from the female perspective, he's called all number of vile things.
Well, when one is offering justifications for vulgarities, there should be no surprise when one receives, let's say, criticisms, for such reprehensible justifications.