I don't like it when people think they know me or make judgments about and on me without knowing the real me, all of me, as such I would rather get to know someone fully, and have them reciprocate this.

it is a really irritates me when people start to think they know me, as a result of their limited contact and their impressions of me based upon how I look. Ask and I will tell all!
It is impossible to set out and fully get to know every person we meet, our brains would overload so we prioritize and discard to the best of our abilities. It isn't right, just or politically correct - its a survival mechanism. I do agree with you that its irritating and frustrating.

But we're all weak. All of us. First off it doesn't take many minutes of studying biology, astronomy or physics to figure out that there's not a hell of a lot keeping us alive, and there's plenty out there that "wants" to kill us.

Secondly, the perception of weakness is built into our species. That's what it means to be a social species. We're instinctually guided toward believing that we're better off solving problems together than alone.

It takes an insane amount of self delusion to believe that you're a one man/woman army capable of tolerating any rejection. But nobody outside of an insane assylum believes that of themselves. Not really. But that's not the issue really.The issue is whether or not we think that other people really are and really feel strong. That's a question of insecurity.
I wasn’t really talking about biology.

Salman Rushdie once said that each of us is three persons in one - how we perceive ourselves, how other people perceive us and how we really are.

We live in a society where perception is everything and people buy into it. You said it yourself that its more socially acceptable to come out as a Dom than as a submissive. Why?
If you told people who know me that I am into BDSM, 70% of them would bet their lives that I am a Domme. If we are talking just about my work place, that percentage rises to 98-99%.
Because, if, hypothetically speaking, one morning during daily briefing session I blurted out “oh, btw, I am submissive” some would think its funny, some wouldn’t believe it, while I wouldn’t get fired my boss might start to think I am not ambitious, driven or capable enough to be in charge, some would have misplaced concern that I am being abused and most importantly my subordinates, 95% of them male, sexist and some of whom still have a hard time stomaching the fact they have to take orders from a petit girl half their age would think that they now get to boss me around, that I am a pushover. In my family and professional life, when things fall apart I am the one who stays in control, the one everyone leans on, I am not inclined to burst their bubble. This is just a part of whom I am, it’s not the whole of me, and I don’t want everything I am to be judged through the prism of it.
I also like the connection and intimacy bubble it creates, it’s our thing.
Don’t get me wrong, we don’t keep it a secret, but those (outside of bdsm circle) to whom we have told, people who know me well, still took time to relax and grasp their mind around the fact that this is what I want and He is not abusing me. He on the other hand usually gets a clap on the back and a “lucky bastard” grins.
Frankly I am way too lazy and can’t be bothered to explain it to everyone I know, ad nauseam, until they get it. Some just don’t.

That's a question of insecurity. We can know things without feeling it in our heart.
You nailed it with this quote. I freely admit that. I even have a similar definition of it, though yours is better. I may intellectually know I look good, but I lack self awareness of it. What I find frustrating is when people think thats my defining trait or that it also means I lack self-esteem to stand up to them when they cross the line. I honestly don't care what other people think about who I am or how I look, regardless of whether that opinion is positive or negative, I am pretty immune to the whole mass mentality thing. The only person about whose opinion I occasionally obsess about is the person/Dom to whom I am attracted to.