Everything about The Vampire Diaries hinged on the clash between good and evil, with heaps of romance thrown in. Elena, Stefan, and Damon stole hearts with their epic love triangle, but even the most beloved characters did some very questionable actions in the CW series. Villains were the biggest perpetrators, but even good characters had tenuous moral standards in the supernatural world.
Source:https://www.cbr.com/tvd-most-controversial-characters/