Typical Putinist deflection. Watch some talk shows on Russian TV involving him from the past decade. Whenever people question or criticize his actions, he does not answer and instead start raving on about the US this and the west that. Even if the action has nothing to do with the US or the west. It's a simple tactic to try move focus from whatever he's doing to whatever evil he thinks the west has done. He's always doing everything to paint the west in bad light; he wants people to think the west is evil, and in doing so, he's supposed to get a free pass.
I used to watch (English) Russian propaganda channels on youtube. They're all full of this. Obviously a lot of people buy it.
The reality is that whether the war in Iraq was justified or not is a completely separate discussion, and the US going to war with Iraq (whether justified or not) is not a justification for Russia going to war with Ukraine.
You can draw parallels, but that is no justification. And vague "self-interests" is no justification. Anyone who thinks USA waged war for oil is probably also condemning that war.
For another example of self-interest, Finland (together with Nazi Germany) attacked the Soviets in Continuation War in order to regain lost territory and to annex East Karelia. You can argue that's self-interest but it does not justify invasion, and I think most people condemn that offensive.