Divide and conquer, exactly. It perpetuates victim mentality and the patronizing attitude that in evident in this thread that keeps things unequal.
Your victim-blaming is disgusting.
Not at all. Oppressed people fighting over whose suffering is the purest and most unadultered doesn't do anything but help the oppressors.
It's a good thing most so-called Ess-Jay-Doubleyews actively combat Oppression Olympics then, because that's kinda the entire point of intersectionality: to bring different social movements together that at first don't seem to have anything in common, in ways that enable us to support one another.
This isn't a new concept, either. The Black Panthers and the Gay Liberation Front supported striking dock workers in West Coast ports, feminist protesters, and worked with SDS and the Revolutionary Student Movement in ways that bridged race, gender, class, and sexuality gaps to form a united front against each others' enemies.
During the late 1970s into the 1980s, the enthusiasm for that kind of united work fell by the wayside in light of the huge conservative victories and the rise of neoliberalism. Post-modernism at the same time came to the fore and brought with it the divisive attitudes that you're referring to: they preached that struggling against institutions was a waste of time and energy, and pushed people to try and reshape their immediate social vicinity instead.
They were the ones who divided people against one another in defense of the state. Intersectionality was the
rejection of this philosophy, and while it grew out of postmodernism and in some senses might still be called postmodern [certainly Queer Theory and 3rd Wave Feminism is], it's come into its own in the 21st century as a wholehearted rejection of this philosophy and a return to the cooperative umbrella struggles of the 1960s.
So when you try to lecture us about how we're being divisive and attacking our own and whatever, you're not only preaching to a choir that sung that song long ago, you're demonstrating your total ignorance of the actual practice and behavior of these groups and the ideas that drive their organization.