No, that's kind of horseshit if the major separation is supposed to be. What about Game of Thrones? One of the major themes is the changing of regimes, from the freeing of slaves to balkanized nations. Its not a conservative series, and its certainly not science fiction.

There are actually four distinct genres: Science Fiction, Science Fantasy, High Fantasy, Low Fantasy. There are further subgenres but these are most effective.

The separation is the importance of mechanical explanations. Star Trek is science fiction: the show is about the mechanics a whole bunch, the warp drive is important to the resolution. Star Wars is science fantasy. Nobody cares how the force works, or how lightsabers work. The point of lightsabers and the force is to add depth to the characters and serve as a means of conveying the narrative. Its mechanics are unimportant.

Lord of the Rings is High fantasy. Gandalf shoots fireballs. Why? Because he's a wizard. That's all that matters. Conan is Low fantasy. Magic has rules (chemistry.) These rules are important. More later.