So what happens when Ukraine loses? Are we at war with Russia then?

NATO can’t field an actual war against Russia, NATO countries don’t have the industrial capacity to do so. NATO has big scary tools, but not many of them, and in a protracted war where the industrial power wins Russia would win out. It would be very bloody, long, and NATO would lose, so it’s unlikely that there will be all-out war.

I think if NATO did go to war with Russia, it knows it has a much larger military and supposedly “better” equipment.

I think they’d try to end it really quickly and either totally devestate russia quickly or take out their industry.

But Israel-iran has showed that not even America has the ability to do an actual war against another industrial power