I couldn’t say it better, so why try?
Jimbo’s Awesome SFF Book and Movie Reviews: WorldCon Follies says it perfectly.
And again, I’m going to point out that you can get SF entertainment without any preachy or politically correct stuff in my books. Escape this world and its craziness for a bit in Loriendil’s Dreamland. (Don’t forget, Sword’s Edge is on sale for a few more days for just $0.99!)