That is not the same thing as the US and UK invading and overthrowing totalitarian dictator Saddam Hussein.
The idea that people should pretend the merits of these two things are the same is dumb, or atleast it's dumb if you value democracy or freedom over totalitarian dictatorships.
It's also the case that right now, the UK, EU and NATO are in the right. They're standing up for a democratic country's right to self-determination and independence, and the right for Ukraine's citizens to live free lives. And since that is the case, making the argument "Well you guys invaded Iraq 20 years ago" is a dumb argument - let's concede you're right, the US shouldn't have invaded Iraq (a position most people probably actually agree with right now), Fine. What the hell has that got to do with what's happening now? Should the West not stand up for Ukraine now? Don't be absurd.
This article is written as if the invasion of Iraq is happening today, a fiction which is pretty transparent.