Cuz he wants to.
Chat with our AI personalities
he don't hates deidara but but one time he told him:Whoa, Whoa, don't put me in the same boat as you Deidara-Chan! I'm not the pussy who had to have his arms reattached by Kakuzu." as you see he insuld him but he called him deidara-Chan and this Chan stands for frendship ,and he don't hates kakuzu he only hates his reason for joining akatsuki (money),sometimes it looks like that he hates everybody but that's only because of that that he is full-mouthed,soo he just have no respect to the other clan members.and jezz and the person he loves the most is his god jashin
Sasori hidan tobi nagato kisame kohnan zetsu itachi deidara kakuzu orochimaru (former)
Some of them died this people are Deidara, Sasori, Kakuzu, Hidan, and Itachi
Hidan's partner is Kakuzu
If you mean Hidan from Naruto, then yes, he is.