I think that the US simply wants Ruzzia to self-demilitarise. There are many reasons for it, all advantageous to US. Ukrainians want an independent country. There are many historic an practical reasons for this interest.
Both are collaborating in their mutual goals and seem to be getting at least a decent result. The more Ruzzia self-demilitarises and self-destroys its economy, the safer is the future of Ukraine and Europe and the better placed is the US to face China.
Europe and US do not "cheer" anything. It is curious how you can at the same time say that you should be using an "adult approach" that this is not "good and evil"... and then decide that this is about race or cultures or hate.
Like any other people in the world, European people wishes prosperity and most European countries have built the EU to get together and solve problems without wars. It only took two world wars and the destruction of half Europe to get there. How long will it take for Ruzzia to give a chance to peace? perhaps never?