I think a material difference between Iraq (v2 anyway) and Ukraine is that they can keep doing the "well Russia was the aggressor" thing indefinitely even if the reality is more complicated.
also yes obviously some libs are still stubborn about Iraq, the worst ones, but for the most part its generally agreed that the Iraq War was a bad thing.
At first I thought that this was the one comment here I agreed with the most, and I might still think that, but the difference is that Libya/Kosovo were "over" much faster than Ukraine. The boogeymen were quickly taken out, while Russia just refuses to collapse, at least so far.
In my extremely limited experience, outside of the internet, libs don't really care about Ukraine anymore and won't push back if you criticize Biden giving tens of billions of dollars to Nazis. This in itself may be kind of a re-examination on their part? They also feel the same way about covid, though. It just doesn't matter at all to them, even though it's actually still extremely important (as is Ukraine). I do have to kind of wonder what they care about at the moment? They were so happy when Biden won the election, but I think most of us strongly suspected that this was going to be as good as it got for them for quite some time. Who knows, it might even be their last major victory.