<<So what if the vast majority were in agreement that Saddam had WMD. According to you, it wasn't enough for them to throw the war switch.>>
Well, that's a good question. It's even, in its own way, an intelligent question. I believe that at one point Saddam did have WMD. Then he came under a lot of pressure to destroy them, and - - to the best of his ability - - he did. Then he had to give an accounting of his WMD to the UN, which he also did, two or three days prior to the expiration of the deadline. And it was, by all accounts, a massive accounting.
Most of the intelligence that you refer to dates to before the accounting, which was more or less accepted by most UN members. It would be a surprise to me if any of the intelligence agencies were giving the opinion you claim for them after the accounting was delivered to the UN by Saddam.
But I still think you're missing the point. Regardless of the "intelligence," the decision to invade has to be based on more than simply what the intelligence report says. For example, intelligence would definitely report WMD exist in China, Pakistan and Israel. None of this triggers an automatic "attack" response. Israel not only refuses to account for its WMD, it denies their very existence. The decision to attack - - supposedly - - was based on the intelligence conclusions that Iraq did possess WMD and the political judgment that such possession constituted an intolerable and immediate threat to America's existence. So it's still a judgment call that can't be blamed on "bad intel."