Some of the story elements that you attribute to science fiction actually belong in another sub-genre of science fiction called hard-scifi, where the scientific rules are supposed to be more strictly adhered to, and more fully explained. When identifying hard-scifi, those elements are more important than they are with space opera, where it is perfectly ok to just call something “a space ship that travels faster than light” and it is so–without much further technical explanation.

Also, I noticed that in your analysis you took points away from one side whenever the other side gained a point. You wouldn’t do that in a basketball game would you? Furthermore, it seemed like you were taking scifi points away for some things that many would consider to be just good story telling in any fiction. Some elements you named took scifi points away even when those same elements are core ingredients of any space opera.

Some science fiction enthusiasts put their emphisis on the science, others put it on the fiction. Science fiction is both science and fiction.

Wizards make fantasy, spaceships make science fiction–Star Wars has both, so it is both.