He's half wrong is basically what it boils down to. The Jedi could not control themselves for going into war. Young brandishes the Jedi as if they had a choice in the beginning of AOTC. Yes, the Jedi were flawed and I don't disagree with either of you. Some arrogance definitely contributed to it. The difference is that Sidious had immense power manipulating both the republic and the separatist. Same with Sidious clouding the Jedi's powers to sense the future. In TPM they didn't think the Sith existed until Qui-Gon gave them hints on who attacked them. There, the Jedi's opinion changed on the matter. In AOTC, Padme made a claim that Dooku was her attacker. Except she had no tangible evidence of said claim and the Jedi also made an arrogant one saying Dooku wouldn't do such a thing since he was friends with them. "What if I told you that the Republic was now under the control of the Dark Lord of the Sith." "No that's not possible, the Jedi would be aware of it." "The Dark-side of the Force has clouded their vision my friend." Why would he trust a Sith in the first place? The Jedi fell because of Sidious with his complex orchestrating behind the curtains.