Breh, you HAVE to overlook that. It's called science fiction for a reason. What you pointed out puts a lot of sci-fi films on blast. There is a scale of soft to hard when it comes to sci-fi films.
Star Wars, Gurren Lagann, etc. Clearly doesn't give a fukk. There's no plausible energy source and there's loud ass explosions in space Very soft sci-fi. And you don't have to think.
And then there's shyt like 2001: A Space Odyssey, which is still sci-fi but mostly grounded by reality. You can learn something.