I think the difference here is that Russia is actually winning on the battlefield, and Ukrainian army isn't likely going to be able to hold on much longer. So, there's going to be an Afghanistan style debacle with public already being against the war.
We're in April of 2006 support for the Iraq War territory, so I'm sure we'll leave Ukraine really soon. That's how it worked in Iraq right?
https://en.m.wikipedia.org/wiki/Public_opinion_in_the_United_States_on_the_invasion_of_Iraq
I think the difference here is that Russia is actually winning on the battlefield, and Ukrainian army isn't likely going to be able to hold on much longer. So, there's going to be an Afghanistan style debacle with public already being against the war.