Objectively, Danzo messed up and created Akatsuki.
that’s his mistake
No, Danzo tried to weaken the rain villiage with internal strife.
A very logical course of action, if Hazno weren't defeated it would've go perfectly.
Obito was the one who turned the Akatsuki into a terrorist organization by influencing directionless Nagato and Konan.
Beside, Obito would've target the Akatsuki because of the Rinnegan anyway.
How Danzo was wrong by trying to manipulate an enemy villiage to weaken itself?