Would it be better if both Russia and Ukraine joined the EU and made Europe stronger and united? Why is Russia against joining the EU while the likes of Turkey wished to?
UK and USA would never allow it. Unity of German industry and Russia resources is biggest threat to them
USA would not allow it, but it may not be possible for them to stop it, just like they could not stop the EU from happening. The UK has no say in the EU - UK has lost plenty of influence in the EU and the Brexit effects added to COVID have left the economy stagnant.
BTW you should read the news if you are assuming the US and the UK have so many common interests.
Having said all that, I am going to repeat for the 10th time the same thing: there are winners in this war, but they are not Ukraine, nor Ruzzia, nor the EU, nor (this is just for Branko's personal fixation) the UK. You can clearly see which economies have done well (US) and which ones have gone down (all the rest) due to the war.
The rest is just a blame game and Putin's fixation with having an empire. BTW, Putin was already waging wars all over prior to Ukraine, so keep saying that someone else provoked and all that...