Why was Chris angry at his parents into the wild?

In "Into the Wild," Chris McCandless was angry at his parents due to their controlling nature and the pressure they placed on him to conform to societal expectations, particularly regarding his future and career. He felt betrayed by their lack of understanding and support for his desire to seek freedom and adventure. This resentment was compounded by the discovery of their troubled marriage and the implications it had on his own sense of identity and values. Ultimately, his anger fueled his decision to abandon his conventional life and embark on a journey into the wild.