1, Elena Gilbert is the reason why Damon and Stefan are at odds.
Ehm, Damon and Stefan were at odds for 145 years, prior to meeting Elena. So, there goes that nonsense,
2, Elena always needs to be saved,
Oh, you mean that time when Stefan got abducted and tortured by the tomb vampires? Or when Damon almost burned in the season 1 finale? Or when Stefan got locked up in a vault? Or when Bonnie used so much magic she died in season 4? Or when Damon wanted to kill Caroline in the beginning of season 2? Or when Caroline was tortured by her dad in order to cure her? Or when Damon was taken by Rebekah and tortured in season 3? Or when Tyler and Caroline nearly got sacrificed? Need I go on? No? Then shut the fuck up, please,
3, Elena is such a crying bitch,
She's lost her entire family, and she feels responsible for all the crap she and her friends and family have to go through. Maybe you're such an insensitive bitch that you can go through the motions without feeling so much as an ounce of pain, but not everyone is like that.