Deranged? those were all his enemies, why wouldnt he attack and act with killer intent, he had a pretty down to earth conversation to Naruto that chapter with meeting with Kakashi and co, and then not to mention his thoughts and such of Naruto two or three chapters ago. Im struggling to see the Sasuke that you are seeing.
Killer intent does not = acting like a raging psycho.
This is not someone who was in a normal state of mind:


Wasn't there the point that the users chakra gets split between all the clones? Or can we assume that the hax wood clones don't have this weakness?
Madara basically seems to have limitless chakra at this point, so I doubt it will bother him any. I mean he implied this chapter he can make every single clone use Susanoo.