but the nation was eager to be deluded
I don't think that's fair. We American citizens were told directly that Iraq had WMDs and an attack on us was imminent.
If we were 'eager' for anything it was to stand together as a country. Most of us believed that the president had done due diligence (after all, he had access to intel that we didn't) and trusted him to do a competent job of analyzing the threat.
We were wrong in that trust.