May I suggest that you start by setting an example? Of what benefit do you see continuing this thread to thread dehumanization by bringing the point up yourself? Why can't each thread stand alone as it's own discussion, with links to other newsworthy items to back up points, without all the namecalling? Your complaint that "the fact that such dehumanization has been a staple of this forum on thread after thread after thread since September 11, 2001" may be a valid one, but what are you doing to stop it?
I could call OWK or one of the libertarians in here for confirmation but I think you're beating the crap out of a straw man here.
If you are sincerely interested in seeing what she has done to maintain a civilized dialogue on these highly emotional threads, just do a quick search of posts by her on Israel and/or the Middle East.