...any number of independent presses abound, catering to all points on the aesthetic and ideological spectrum. And, frankly, the ease with which anybody can self-publish these days means that no author can use a lack of interest from publishers as an excuse any more. If getting your uncomfortable message out to the world and forcing it to think and react means that much to you, stop waiting for somebody else to do you a favor and publish the book yourself.
Is that a hard path? Yes. And the odds are good that you won't make a lot of money at it, especially if you're a quitter. So you have to ask yourself: Is your message so important that you'd be willing to give over a huge chunk of your life to getting it out? And if you can't say "yes," then why should you expect anybody else to care about your book either?
Go read the whole post. It's brief and very much to the point. Good stuff.
* The smart-alecky romance novelist in me insisted on italicizing those words