Okay so that's definitely a bad definition of sci-fi and a lot of sci-fi doesn't fit that mould. Including vaste swathes of "hard sci-fi". If it's gatekeeping it's the most inept kind because it directs actual successful sci-fi authors away from the gate, whilst letting in terrible science-fantasy and just straight up supernatural horror, which like, time to hire another gatekeeper honestly.
With Star Wars you're calling it "science fiction" purely on the basis of "supernatural elements", which is really funny because if anything, that's the defining trait of fantasy, not science fiction. There's a reason it's regarded as science fantasy, not science fiction, if we're gonna gatekeep.
Uhhhh that is what makes it science fiction, buddy. Sorry.
You could like micro-gatekeep and say "Oh well okay but it's speculative fiction not science fiction", but let's be real, 99.9% of people don't distinguish between those.
Certainly these are all speculative fiction. Capricorn One arguably isn't even that, that's the distinguishing factor. It's just a straight-up conspiracy thriller about something a lot of people actually believed.