If this wasn't such BS and tragic, those words would be funny coming from his mouth. He did his part to make sure that even a peaceful withdrawal couldn't happen.
Obviously Lincoln didn't practice what he preached.
America would be a better place today if he truly believed and adhered to his stated ideology.
After a brief period of separation, I believe the U.S. would've reunited ultimately - but adhering to a federal framework closer to what our forefathers specified in the Constitution.