Good points. WMDs were far from the only reasons we went into Iraq.
Let's set the context first. We were in a state of war with Iraq, under a cease fire.
I left out the 500,000+ people Saddam had killed because, after all, who cares about those filthy little brown people. Right? /s
bkmk
People see WMD and they think “nuclear bomb”. Nukes take centrifuges. Bombs require testing that can be detected. If we discovered gas centrifuges or recorded a blast test I’ve never seen it reported. It’s not in your list of links.
What Saddam had was poison gas like sarin and sulfur mustard. He had used it on Iran and on the Kurds. The WMDs we found were artillery shells filled with poison gas and they may well have dated back before the first Gulf War.