Just wanted to say that I really empathize with the humiliating situation you shared in the post. It brought me back to a handful of humiliating experiences I had in school. They affected me deeply -- exacerbated by the fact that I didn't have anyone in my life I felt comfortable confiding in, so I just bottled them up and let them fester inside of me, and shape me. The childhood innocence that is lost at the hands of insensitive adults is just tragic.
I'm not sure a focus on lifeboat scenarios is the best approach for this topic. Lifeboat (zero-sum) situations are so rare these days most of us will never be faced with one. And if we are, the outcome will suck no matter what.
For the handful of other scenarios in which strength is of critical importance, men generally are stronger than women, and I do think they need to be cognizant of this fact. But it would be just as wrong for a woman to take advantage of a weaker man as it would be for a man to take advantage of a weaker woman.
In the majority of scenarios these days, however, strength doesn't much matter. We have machines to do most manual labour for us, and we can hire people to do our heavy lifting. So the notion that women must be treated with kid gloves is rather misplaced in the modern world. I get that treatment sometimes and it drives me crazy. It's kind of a no-win situation because if I ask someone not to give me special treatment when they weren't aware that they were doing so, suddenly in their mind I have requested special treatment, and I fear they will forever feel uncomfortable around me. I think the best I can do is not to reinforce (positively or negatively) special treatment -- to strive for a world where people don't judge others primarily by their exteriors.
So thanks for trying to become more self-aware of -- and spreading the word about -- this issue.