No one should feel insecure. The Jo Hari Window concept associated with psychology speaks of the four panes of a window of self-awareness. The pane says to see yourself, another that speaks of what both you and the other person see, the pane that talks about what the other person can see and you may not, and then the unknown. I think how you come across others may be an essential consideration here. I believe that the more we can open up the panes to where we can look back at ourselves and see ourselves in context, it might be a healthier perspective, all the while being well-aware of our rights to go naked, for example. There was a "naked guy" who used to attend Berkeley. I even saw him walking down the street. I didn't care, but I thought of his naked butt on the classroom seats. I was amazed by his size. I was sure he got girlfriends. But, I also thought his point was trivial. Sometimes, when you take up a cause, you need to consider how others will react. He eventually committed suicide.
I want to share what I do with those who appreciate me. I play music at Lake Merritt, and I wonder if I am presumptuous?
No one, except two boys, has praised me, but only to share my sound system. We have to consider others in public, no matter how seemingly unevolved their reactions. I also think of free speech. You are demanding that men behave. I am about to release a book that addresses the veracity of male desire vs. the unwanted male gaze. The point I end up making, as you allude, is that men make decisions as to how they will react in the presence of women who are not interested. So, I think your ideas coupled with the #MeToo! Movement make inroads and make men believe. But, even while men may choose to behave, they still have a universal reaction to breasts.