Not a Star Wars or Star Trek fan but I love action, adventure, and badass weapons and badass spaceships! I did love Stargate SG-1 when they had Richard Dean Anderson on it.
I think the term spaceship is boring! I prefer the word orbital battlecruiser or stealth attack destroyer!
Most of the people I know who read sci fi books or watch sci fi TV are left wing and moderate.
The people I know who are right wing are into reality TV, Sitcoms, Fox News, and/or religious programming.
So is there a perception that the genre is too liberal? Too scientific? And don't these people know about sci fi with badass military people as protagonists?