Interesting, excellently written, and well researched and documented. It tells the story of how far we've come, how much further we have to go, and how tenuous it all is. Read the Philip Roth book if your imagination can't get you there.
As a fully-articulated gay man, I forget how recent it was that my very existence made me a "presumptive criminal" in many states. In fact, it hadn't occurred to me that I had committed felonies in so many places!
Keep the people in the brown shirts away!