Traits of Khawarij 

First point: the Khawārij are not from Quraysh!

Second point: The Khawārij were a sect that arose to challenge the authority of the Khalifah. They were a stubborn people who claimed that any ẓulm, which included any major sin, was grounds for excommunication from Islam.

Third point: The Khawārij were a sect that collaborated with Jews like Abdullaah Ibn Saba to rebel against Khalifah.

11th trait of the Khawarij - when people describe their characteristics or criticise them based on logic, Ahadeeth and Quran, they demand "Where's the source? Where's the chain of narration?" etc...