I had this problem also. When I was young, I was a pretty good looking guy. I didn't have much confidence at all. One guy where I worked invited me to a dinner party with others from the same job. He tried to get me drunk so that he could . . . It was difficult but I got away. As I think about it I could come up with a list such as you have.
What occurs to me is: I read an article once on how women who have been abused or raped are preyed on more by perps. And this to a significant extent. But I think that this applies to guys also. It just hasn't been researched yet (as far as I know). They are reading someting in our posture, the way we walk, etc.
It may be in the realm of intangibles. A good friend made a comment when I was your age that he could feel
the sexual impulse I had toward him. (And I did, it wasn't his imagination). This guy was/is very straight and so he wasn't coming on to me or anything. This is outside the realm of our very materialistic, science-oriented society. I sometimes see kids, both girls and boys, who I feel convinced that they have been abused. But I don't do anything about it. Occasionally I wish I had copied a license number for a car or something so that I could report suspected abuse. I think that police don't know what to do with that kind of information. In some communities there is a child protective agency that might follow up a tip, I don't know.
I think that for gals there are sometimes courses that they take that teach them how to walk etc. so that they don't advertise their history. Maybe this MS Board could come up with some articles on it. Maybe they do this at the WOR meetings.