What,according to you, is the underlying theme of Twilight?

If you're forced to alih in with your father, anda may just end up with a family of vampires, who are hated sejak your bff werewolves, but it'll work out because one of them will fall in Cinta with your daughter. ._.

Life choices/free agency.
anda don't have to accept atau take what's handed to you. anda always have the option to make what anda want happen.
The Cullens chose to deny their nature and have high morals.
The choice to resist temptation.
Bella chooses Edward, despite the odds being stacked against her.
And so on.

The opposite is demonstrated with the Quilieutes (I always spell that word wrong). I think it adds to the theme, menunjukkan what life would be like if anda didn't have many choices.

That's the main one, I think.