Again: If serious legal action is in the works, talk to your attorney about whether it's a good idea to publicly discuss your case on blogs, web forums, interviews and the like.
(I'd also read
this article, and perhaps do more research, if your attorney prefers to work on a contingency basis rather than a fee.)
If your attorney green-lights it, and if you can afford it, I'd hire a public relations specialist and follow their advice rather than a bunch of people on the web. Sometimes you get what you pay for.
If you are still willing to hear a non-professional's view and/or just sound out my position:
Unfortunately, I have serious doubts that, in the short term, Amazon is likely to relist your book.
Legally I don't think you can force them to sell it, which leaves publicity and political pressure. Call me a fatalist, but: No matter how unfair it is, or what the content actually is, I think you will have a hard time getting a lot of people to publicly go to bat for a book with the title "How To Rape A Straight Guy."
Plus, what's your goal? Get listed again on Amazon? Draw attention to increase your profile and sales? Become a
cause celebre? Wreak revenge on your tormentors? Each of these will require a very different strategy, with different potential consequences for you and/or your work.
My best guess, again as a non-pro, is that your most practical option is to make some hay out of the episode, get your name out there, drive sales via other outlets, and as much as it sucks, don't make it your
idée fixe. Every professional has setbacks -- many far, far worse than this.
I.e. you
do have options. It's up to you to recognize that, and decide which one(s) are worth pursuing.