The alliance as such would not be a problem. The problem is that its key member, USA, is Russia's nemesis, and that the common NATO defense is based on nuclear

The alliance as such would not be a problem. The problem is that its key member, USA, is Russia's nemesis, and that the common NATO defense is based on nuclear retaliation (that's why there are automatic triggers). I wouldn't mind if it was a military alliance of Russia neighbors and it disavowed the use of nuclear weapons. Then it would truly make the world safer, IMHO.