This is what the EU should propose to Putin. Russia will withdraw from all land it seized from Ukraine after the 2022 invasion. NATO would be dissolved and replaced with a European alliance. Ukraine and Canada would be permitted to join but not the US. If Putin doesn’t accept the proposal, the UK and France would send troops to Ukraine.
There is zero chance of Russia withdrawing from the current territories at this point. Also, why would Russia give shit if France and UK sent troops to Ukraine. Russian army is at around 1.5 million troops, while the EU could scrape up a few thousand troops at best. https://www.independent.co.uk/news/uk/home-news/british-army-troops-ukraine-defence-b2701635.html
Meanwhile, the US provides the bulk of NATO accounting for over 70% of arms and majority of the troops. Without the US, there is no NATO. Anybody who understands basic arithmetic can see how absurd this whole notion is.
Numbers alone don’t count. During World War II, Germany could have conquered Russia if it didn’t have to fight the powerful US in the west. That’s the reason Putin might accept the plan. Without the US in Europe, Putin might think he can conquer Europe.
The alternate reality you inhabit is fascinating. Meanwhile, here’s what a book produced by US military has to say on the subject.
The fact that you’re historically illiterate explains why you have ideas that have no basis in reality. Maybe read a book for once in your life.