The spaceships and aliens are how you get people to look at it from a new perspective.

The early seasons of DS9 were about the aftermath of the Soviet occupation of Afghanistan and the fall of the Soviet Union. 1990s Americans couldn't have cared less about the dangers of far-right religious indoctrination of schoolchildren, the re-intrigation of traumatized resistance fighters into peacful society, the cautious restoration of political and economic ties with former occupiers, and the danger of the discovery of a new resource in the territory of a politically and militarily fragile nation full of extremists.

But throw in phasers and a warp drive and people will watch. Suddenly you've tricked people into recognizing that people with different backgrounds and religions can embrace their differences to make the world a better place, or reject that unity and create suffering. You have capitalists and socialists sharing space in peace. There's an invented taboo against rekindling an old relationship that's actually about gay rights.

All these amazing topics are brought to an audience that just wanted laser fights.

Any genre show can do it. My parents were as red-blooded Republican as anyone, but the third episode of The Last of Us had them crying tears of joy and pain over the love story between 2 men. It tricked them into becoming open-minded by promising zombies.

That's fiction at its finest.