I concur, I'd put it at at fantasy a dozen times over before science fiction.
Though it should be said that much of fantasy can be a lampoon of modern culture. Stephen King comes to mind. A lot of crafty thought can be drawn between the Senate's tranference of power to Palpatine and our (Americans) authoritative power given to high office after 9/11, even.
I'm not sure how much I've cared for the thought expressed in this thread that a required theme of science fiction is political motivation. I think it is closer to fantasy's realm, or at the very base, foundation for an engaging plot regardless of theme.