Headline: New trilogy of movies has conflict.
"They all live happily ever after" is neither an interesting nor realistic fate for characters. It does not dishonor Han Solo to say that he didn't settle down and work 9 to 5 in an office job after Return of the Jedi. It doesn't dishonor Luke Skywalker to show that he wasn't infallible. It doesn't dishonor Leia to show her still fighting the good fight.
The force is not a skill gained by converting experience points gained through rigid training. It is an energy field that surrounds all things and can be harnessed by certain individuals. It is a mystical force that has teleological features. When the movie was titled "The Force Awakens," it was clear that something special was going to happen pertaining to the force. It happened to be centered around Rey. This does not mean that anyone who hears about the force and tries a few moves is going to master it.
Luke's lightsaber is not innately magical. It evokes a response because Rey and Luke have a common destiny bound together by the force.
Acting like Star Wars in 1977 was uniquely original in order to criticize TFA opens Star Wars up to being accused of copying everything it ever referenced or borrowed from, which is a considerable list. Learn some history about how much Star Wars borrowed from other properties.
And just to be clear, every single one of these topics/arguments couldn't be more transparent. It's Lucas apologism based on the hollow argument that "the Prequels may have been terribly executed, but at least he had vision!!" Sorry, this is something that only Lucas fanboys who want to redeem everything he has ever done believe. If you like the prequels and the Clone Wars cartoon, good for you. I've gotten a decent amount of enjoyment from them myself. But attacking TFA as plagiarism or not being a faithful enough or a reverent enough continuation of the saga is plainly absurd, and most of these arguments reek of bitterness at its success rather than legitimate attempts to criticize the film.