It’s not sci fi! Just because it shares elements of the genre doesn’t mean it’s sci fi!
I’d suggest moving this argument to a different thread.
Starting it elsewhere might be good, but if you do, I challenge you to name one aspect of Star Wars that can’t be found in something clearly acknowledged as science fiction. Find one thing. I’ve read science ficton that goes back to the 30’s and you can’t do it because everything Lucas did has been done before in science fiction. Everything.
I don’t think you’re looking at it the right way at all. We’re talking about a genre here. A genre is more than just a collection of components that are found in the story, it’s how the story is told.
Not to mention, if I said “look at Braveheart and tell me one thing it does that can’t be found in Game of Thrones or Lord of the Rings,” that doesn’t make Braveheart a fantasy film. There’s a lot of things that sci-fi does that SW doesn’t.