Yeah, Star Wars is Sci-Fantasy. It has more in common with The Hobbit than it does with Star Trek (in terms of theming and ‘realism’).
Star Wars isn’t realistic, nor is it trying to be realistic.
Name me one force power that Gary Mitchell didn’t use in the 2nd Star Trek pilot. And if not him, some other seemingly humanoid being in another episodes. Star Trek is no more realistic than Star Wars. not one bit. The stories differ with Star Trek being based on a variety of topics, from current issues to myths while Star Wars was based on some other very classic SF franchises, Samurai movies, and Cambell’s Heroes’ Journey.
And if you recall how much magic is in The Hobbit, there isn’t much. Most of the story is just a good, down to earth adventure. While Gandalf is a wizard, he much display his power in The Hobbit. Most of what he does is on display in Lord of the Rings so your argument doesn’t really hold up. Gary Mitchell used more powers in one Star Trek Episode than Gandalf does in the entire series.
The fantasy genre is based on magic. Science fiction is based on science. Typically you get horses or space ships, wizards or telepaths. Star Wars has as much science in it as Dune (which a lot of Star Wars was based on).
Now many may be confusing the narrower sub-genre of hard science fiction for science fiction in general. In hard science fiction everything must be scientifically possible, but the wider spectrum of science fiction does not follow those rules. It doesn’t now and it never has. Hard science fiction does not include faster than light travel, laser swords, telepathy, telekinesis, transporters, or anything that isn’t solid science. The rest of the field, which is the majority, doesn’t care and will include whatever the writer wants to make the story work. Lucas thought he was being clever by inventing the name space fantasy, but what he created in Star Wars is just part of the overall science fiction genre. Most people ignore his label and file it under science fiction. After all, people with telepathy and telekinesis are a standard trope of science fiction, as are princesses, pirates, farm boys, laser guns, space ships, hyperspace, galactic empires, and strange aliens. The lightsaber was a new one, but not totally original. Just about everything in the saga was borrowed from either myths (a favorite source for science fiction stories) or other science fiction franchises. Well, some history as well, but again, a favorite source for science fiction stories. Nothing in Star Wars can’t be found in a thousand other science fiction stories.