Yes, all believe they Iraq had an ongoing chemical and nuclear weapons program (remember the attempt to send in inspectors). Not all agreed to going to war, but consensus they had some pretty nasty weapons.
The attempt? The UN absolutely sent inspectors. That people didn't trust Saddam and wanted to make sure that he was not fooling around is one thing. To invade the country on exaggerated or just made up claims is entirely different. I don't know about China or Russia, but from what I understand, Chirac never really bought into the "proofs" proffered by the US. As for other countries who did go to war, it's a question of how much their leadership was convinced, and how much they did it to gain political credit (eg, a whistleblower leaked information from the Danish military intelligence clearly showing they were not sure at all Saddam had any WMD).
Fox News and certain American talk radio hosts heavily promoted the belief that adequate inspections never occurred and that Hans Blix's conclusions were not to be trusted (because he hated America?). efa's understanding of the events might be based on such sources.
