Why is it a joke to say that the purpose of the American Civil War is to liberate slaves?

The reason why the North League and the South League sorted out life and death was mainly because the southern plantation economy occupied a large number of blacks at that time. While the north advocates the development of its own industry. Because the industrial strength in the northern region was excellent at that time. However, due to the need for a large number of young laborers for industrial development, the Southern Alliance occupied most of the slaves at that time, which also made the Northern Alliance very dissatisfied, so the war broke out.

Of course, liberation did bring excellent combat effectiveness to the northern army, but we also saw that it actually buried great hidden dangers. Because after the civil war, the status of blacks has not been greatly improved. On the contrary, blacks are also affected by racial discrimination. So the purpose of the civil war is to liberate slaves, which can be said to be a considerable joke.

Judging from the initial decision of the Confederacy, it was mainly because the Confederacy was supported and recognized by the Constitution. Of course, judging from the constitutional provisions, the Confederacy did not violate any constitutional provisions, because the Constitution stipulates that any region has the right to secede from the Federation. However, the union army chose to stop them. Judging from the later development, the northern army did indeed safeguard the unity of national sovereignty.

After the liberation of slaves, it really brought great fame and blow to the northern army. However, due to the deterioration of military discipline, the northern army will choose to steal or kill wherever it goes. Of course, we should also know that Lincoln actually made great efforts and sacrifices to promote this bill.