As soon as it became a physical power of telekenetic abilities, the Force became hokey to me, and entirely unappealing.
As was pointed out via Superman and Star Trek examples, it also messed up dramatic situations by making Jedi invincible for all intents and purposes. BORING.
Go-Mer, all these caveats you constantly raise - Jedi can't Carrie-move stuff when they're tired is but the latest example - - may be fine when you have time at home to rationalize ... but if it stands out like a sore thumb during a 2-hour movie, then something is wrong with that work of entertainment.
.