I love good sci-fi. I mean, I really, really love it. In my bones, in my blood, if I believed in souls I'd say in my soul. And there are lots of reasons... cool spaceships, the love of exploration, of finding something new, of going past the horizon, of beating impossible odds, and because lasers swords and explosions are really cool.
But at the core of all that is an important, simple, message: resist.
Sci-fi is all about standing up to impossible odds. The Empire versus the Rebellion (or the newer Order versus the Resistance). The small plucky kingdom versus the massive corporate superpower. The single smuggler versus the planetary governor. The kids versus the government.
It's all about resisting the way things are in favour of the way things can (or should) be.
In the words of the amazing Neil Gaiman, "Fairy tales are more than true; not because they tell us dragons exist, but because they tell us dragons can be beaten."
Right now, with American (and Ontario) politics the way it is... we need to remember that no matter how big or stupid the empire, that it can be defeated.