Iraq not only had WMD, they used them. And they had extensive programs for further development. Fucktard.
"Weapons of Mass Destruction" is a relative term. Back in the days of the American Revolution an ordinary 80mm mortar would be considered a weapon of mass destruction. In WW-I the dreaded mustard gas shell was considered a weapon of mass destruction. The chemical weapons we sold to Iraq during its war with Iran were no more lethal than those mustard gas shells. The inverse progression can be taken back to Medieval siege towers and beyond and it may be said an ordinary hand grenade tossed into a crowded room is a weapon of mass destruction.
In contemporary terms, a weapon of mass destruction is not a hand grenade. It is not an 80mm mortar round, nor is it a mustard gas shell or its destructive equivalent. In contemporary terms a weapon of mass destruction is a nuke and nothing less. So your rationale to justify the Iraq invasion is null and void. Iraq never had a weapon of mass destruction. The Iraq invasion was the unnecessary and immoral consequence of a criminal conspiracy between George W. Bush, Richard Cheney, Donald Rumsfeld, George Tenet, Colin Powell, Condoleeza Rice, et. al.