An Alternative Viewpoint: Can NATO fight Russia and can it Win?

I am a little bit pessimistic and believe the Ukrainian/Russian Conflict is going to escalate into a conventional WW3 because of stupidity on the West.
However, a lot of people, on the Pro Russian Side, belittle the weapons systems of NATO compared to the Russian armament.
I believe this is a big mistake because in war nothing is for certain and there is a lot more to it that you can imagine.