Well, I'm not heterosexual...

But your reference to White heterosexual men still sidesteps all of the discrimination and oppression generated by one's religion, age, perceived beauty, disability status, geography, socioeconomics, politics, etc.

That's the reductionism that I'm rejecting. It sounds like you're saying, "Let's deal with race, sex/gender, and sexual orientation first...and just put everything else on the backburner until we've figured all of that out."