Nowhere in here did you explain how choosing something divisive -- while it might be the best choice for the individual -- "works against the divide". You have to understand that your attitude very much comes across as "look, you're the one at fault, which gives me carte blanche to do whatever I want, and if it ends up making the overall relationship between us worse then tough luck -- it's up to YOU to fix it."
Case in point: this thread. I suspect that you feel that your efforts are an attempt to "work against the divide". If I might offer my observation, as well-intentioned as you might be, your approach and language generally serves to widen said divide.
Perhaps I am too confrontational. Perhaps someone else could do this better, maybe even you. However, I'm all I've got.
There's an interesting parallel going on in the atheist community. For years, women felt they were being overlooked as speakers, diminished to sexual objects, etc., while atheism was being run by white men. They would even talk about it sometimes, but felt no one in power was really listening. Then, a little over two years ago, a lady named Watson made a short video about how not to proposition women at conferences (in an elevator, while you're drunk, having mad no conversation at all previously), a second woman commented that Watson had over-reacted, and Watson responded at a public event attended both women that she had not over-reacted. Suddenly, stuff began flying all over the place. Something that came out quickly was Atheism+, a move to incorporate humanism and social justice into the culture(s) of atheism and skepticism. The people who oppose this position (often called pitters, because on of the primary hangouts is titled the Slymepit, and I don't know of an non-ironic name) accuse the feminists of creating a big rift in movement atheism, the feminists respond that they are just pointing out and uncovering a rift that had been there all along.
So, I'm not so sure I'm widening a divide. I see it as more that the divide was covered over in cardboard and duct tape. Sure, as long as you don't send over too many people, and no person has too much weight, people can cross it. I want to build a stronger bridge. To do that, you have to get people to understand that 1) the divide really is that wide, and 2) we're going to have to take down the cardboard, and see the divide, before we can bridge it. I don't think Stoked and I, or Bronco70 and I, are any further apart in our opinions on social justice issues than we were three or four years ago. The division is just clearer now.
If I didn't think I had any responsibility to help fix things (to the degree that message board discussions fix anything), I would just post insults and leave it at that. However, I won't deny that's how my attitude comes across. I think part of that stems from the power dynamic involved. Privilege is like white noise; you don't realize you have it until someone is trying to remove it, and then you don't want to lose it. Our society works very well for white people as opposed to blacks, but in small, frequent ways that are hard to see when you are white. In any imbalance based on differential power, the primary effort will need to come from the individuals with relatively more power. Not because they are bad people, not because they are evil, but because they are the beneficiaries and have the power.