The map is silly and so is the reason for why people are drawing them, but here we are.

True, it does seem a bit hypocritical to say that the Constitution and the Bill of Rights is about freedom, but yet the states don't have the freedom to leave the union. It is possible, that the Constitution, while not saying so, left the ability to leave "up to the states".

As far as any history of the Civil War goes, if one ignores the written declarations then one is only telling a partial telling of the story.

Here is the Confederate States of America - Declaration of the Immediate Causes Which Induce and Justify the Secession of South Carolina from the Federal Union.

Now, as I have said, the war was about right to leave. The reason was about slavery and making slaves citizens who could vote. Read that declaration and tell me that you honestly believe that slavery had nothing to do with the reason for secession.

We affirm that these ends for which this Government was instituted have been defeated, and the Government itself has been made destructive of them by the action of the non-slaveholding States. Those States have assume the right of deciding upon the propriety of our domestic institutions; and have denied the rights of property established in fifteen of the States and recognized by the Constitution; they have denounced as sinful the institution of slavery; they have permitted open establishment among them of societies, whose avowed object is to disturb the peace and to eloign the property of the citizens of other States. They have encouraged and assisted thousands of our slaves to leave their homes; and those who remain, have been incited by emissaries, books and pictures to servile insurrection.

For twenty-five years this agitation has been steadily increasing, until it has now secured to its aid the power of the common Government.