It just seems to go against your beliefs. Mankind has abandoned religion and bigotry, ushering in a true golden age where Earth is an one world government with close ties to a bigger government of other worlds. It just seems odd that Evangelical Christians would like that, it seems like everything they're against. Most don't even seem to not like any fiction that doesn't bend over backwards to pander to their views.
Because we understand that since Christianity's birth, Christians have had to exist (and hide) within many kingdoms/lands with belief systems that are opposed to ours - this is just one more. And we appreciate the allegory and metaphor that point to our own failings and cause us to question what we've been doing. And occasionally, we're vindicated in our beliefs about an issue.
I enjoy reading many different genres of Christian fiction, including ones that feature dystopian societies, such as in David Gregory's The Last Christian or Krista McGee's Anomaly trilogy or James Dobson's Fatherless trilogy.
And I also enjoy a good Trek adventure.
