Brian Phillips celebrates the recent 25th anniversary of Star Trek: The Next Generation with a long but engaging essay on the show's nuanced ideology:
It was already possible, by the early '90s and actually long before them, to trace the terms of the current partisan divide in America. Conservatives — think in Jonathan Haidt–ish terms here — value tradition, authority, and group identity; liberals value tolerance, fairness, and care. Or whatever; you can draw the distinctions however you'd like. The point is, The Next Generation depicts a strict military hierarchy acting with great moral clarity in the name of civilization, all anti-postmodern, "conservative" stuff — but the values they're so conservatively clear about are ideals like peace and open-mindedness and squishy concern for the perspectives of different cultures. "Liberal" ideals, in other words. You could say, roughly, that the Enterprise crew is conservative as a matter of method and liberal as a matter of goal. They sail through the universe with colonialist confidence sticking up for postcolonial ideals. I mean, Starfleet has a Prime Directive … but it's explicitly non-interventionist!
Previous Dish on Star Trek and torture here.