Feminism and BDSM article

I am curious about the intersection of feminist thought and female submission in BDSM. A couple years ago I had an illuminating email correspondence with an L.A. couple (via alt.com, they went by this pseudonym "trisexuality" and disappeared after a little while, I'm still trying to track them down) regarding the presence of a parasitical dominant-leaning mentality pervasive within capitalist culture which scorns the pleasure of the submissive as something of a lowly/invalid nature.

Here's part of what they wrote:

'[Within a capitalist framework], every person is driven to compete, to earn wealth, and to climb up the leadership hierarchy as far as they are able. In our American society, this is even more directly manifest in the system of corporatized capitalism - where the hierarchy is explicit in the form of the corporate management pyramid...

'One of the intrinsic assumptions of the capitalistic framework is that everyone is a dominant - or rather, that everyone wants to be a dominant, and that submissives result from those who attempt to be doms, but fail...

'The modern American system has at its heart the idea that competition is eternal. Until recently (approximately the 1980's), the model was one of individual families competing against one another. Daddy works at the office... Mommy runs the household and attempts to augment Daddy's role as the primary competitor by making sure his shirts were better starched than those of his competitors, and that he arrived at work energized by a better breakfast and better behaved happier children being taken off to a better school. This system put women in an eternally subordinate role, and men dominant relative to them because of the external capital framework - which is to say, that because the women did not control capital, they were marginalized. In effect, Daddy was the lowest level of the management hierarchy, and Mommy was the working class.
In our modern world even this has disappeared, and Mommy and Daddy compete even with each other as independent elements of the capital system.'

This post argues that our propensity to compete and dominate others is strongly influenced by ingrained cultural capitalist ideals. I think there is a lot of truth in this. Many people feel shame associated with the discovery of their own basic human desire to relinquish power.

Lately I've become interested in this concept of bliss-in-complete-surrender as something which transcends gender. But it would be good to spell out, entirely- with historical context and psychological baggage issues explained- why certain feminists feel that the practice of BDSM runs counter to the ideals of woman's equality.

Below I have begun to post any relevant snippets that I find on the subject. If anyone can find related articles (sans hyperbole or appeal to pathos) with tight writing and maybe some good citation, please send them my way:

from: http://www.columbia.edu/cu/sister/BDSM.html
The final attack leveled at me by other feminists has been, "All hierarchical relationships are in opposition to the principles of feminism. Dominance and submission are necessarily hierarchical."

This argument reeks of the kind of bureaucratic, simplistic intolerance which is born from an unconscious fear of having an ill-intended lover or parent siphon your power. I'll elaborate on this later...