This outlook is a bourgeois one, and something that many of us can't shake, no matter how hard we try. But the fact is, the world does not revolve around you, and the RCP is very much alive, and if anything, is experiencing a resurgence. Just because some people have had bad experiences, or are no longer involved in revolutionary organizing, does not mean it's over. It's only over for them. Things can and do exist independently of your belief system.
Regardless of this, I do recommend the book. It's a valuable lesson on the f.b.i.'s willingness and ability to do anything to protect the imperialist state. Read it.