The UN became irrelevant during the YEARS they allowed Saddam to go without inspections. That had little to do with US policy, and started before Bush took office and went unchecked until Bush announced we would do their job if they didn't. This is a matter of historical record that can be verified simply by looking at the timeline.
Saddam had over a decade to comply,
and didn't.
The UN had over a decade to remedy that situation,
and didn't.
Sick and tired of the Dog and Pony show, Bush says enough. Last chance. Comply or be crushed.
Fearing their irrelevance is about to be proven, the UN wakes up and passes yet another resolution.
Saddam still doesn't comply. (Timber already showed you why the inspections didn't constitute compliance. Please, at least, admit the obvious FACTS.)
The UN still wants to do nothing about it.
Bush makes good on his promise.
You have to be deliberately obtuse to pretend that the YEARS the UN allowed Iraq to go unchallenged isn't the main reason for the charge of irrelevance... And Bush wasn't even President when that started.
Take off your hyper-partisan hats for just a moment and admit the truth.