Common misconception, OP. Sasuke isn't looking for answers.
He already has one goal. He always has. It's revenge for his clan. The only fact that matters to Sasuke is that his entire family is dead. He wants to know why, that's all. Whether he blames Madara, the Leaf, Naruto, Itachi or whatever. He's that single-minded, and he isn't going to change his mind.
Here's my prediction: We see Kishi trollin', and we hating. But he isn't writing dirty. Sasuke will hear them out, and then decide this:
"My family is dead because of your "Will of Fire". Hashirama, why didn't you stop Madara for good when you had the chance at VoTE? Tobirama, why did you develop a horrible jutsu like Edo Tensei? Hiruzen, your hypocritical love of peace and weakness of character lead to my entire clan's demise. Minato, you're the worst... you turned your own son into the carrier of a beast and made our lives tragic and horrible because you couldn't get the job done yourself... I reject you and your hypocritical "Will of Fire". Now vanish into history, Hokages and become objects of my vengeance. Die along with this world of lies."
Hashirama fights Madara, he loses narrowly with Madara jacked up with Rinnegan and Juubi juice. Madara dies content that he bested his rival, causing Edo Tensei to evaporate and him to vanish. Tobirama finds a way to free himself from Edo Tensei and comments on how the dead should stay dead, possibly he fights Orochimaru or someone else. Hiruzen will probably fight Sasuke or Orochimaru as well. Minato will have his personality robbed and be sent to kill Naruto. I predict he steps in at the last second and stops Naruto from killing Madara, dealing a nearly fatal wound to a stunned Naruto that sends him back into Kyuubi-verse. For a few weeks we will assume Naruto is dead.