If nuclear war is that close to happening, then we are already too far gone to address it. Who is going to be the one to convince Trump to decommission some of America's nuclear weapons?
The situation is pretty crazy. Russia is far from the world's biggest economy, yet it is the nation with the greatest nuclear capability. There is clearly a desire to hold the rest of the world hostage, strongly equating fear with respect.
Note that Ukraine once had nuclear weapons. They gave them up, being assured that Russia would not threaten territorial integrity and that the USA would help ensure this. We see what those promises were worth. Giving up the nuclear capability was obviously a mistake. There is no way that Putin would have annexed Crimea under the threat of nuclear retaliation.
I don't agree with Russia's policies, also not an American, but just taking a look at the last few decades, you can see the build up and America is not innocent in any of it.