And your reply confirms you chose your screen name well. What relevance does your reply have to do with Mr. Lincoln’s intentions or motivations?
It goes more towards your misunderstanding of what Lincoln was saying. He was confirming the right of people everywhere to rise up and rebel against their current government if that government does not suit them. Nowhere in his speech, including the parts you left out, does he say that success in their rebellion is a right. He was not advocating secession as practiced by the Southern states, nor did he say or imply that the acts of rebellion were legal.
The South chose to rise up and try to throw off the U.S. government. They failed miserably in their attempt. Nothing more and nothing less.