It would be much easier for me to be so tough - the tougher I am on Russia, the better. But you know what? I want to do the right thing for the American people. And to be honest, secondarily, I want to do the right thing for the world. If Russia and the United States actually got together and got along - and don't forget, we're a very powerful nuclear country and so are they. There's no up-side.
The penguin doesn't know it's cute, and the leopard seal doesn't know it's kind of big and monstrous. This is just the food chain unfolding.