You mean that it's bad that the USA threatened to nuke Russia when Russia was putting missiles in Cuba, or when Russia invaded Ukraine when USA said they would put missiles in Ukraine? Was it bad the USA threatened nuclear war because Cuba wanted to defend itself from a belligerent neighbour? Russia backed off, should the US back off from Ukraine? Or "this is different".
You mean that it's bad that the USA threatened to nuke Russia when Russia was putting missiles in Cuba, or when Russia invaded Ukraine when USA said they would put missiles in Ukraine? Was it bad the USA threatened nuclear war because Cuba wanted to defend itself from a belligerent neighbour? Russia backed off, should the US back off from Ukraine? Or "this is different".