My point is that it only represents one point of view.
It represents the views of those 5 states who presented a list of causes for succession and then there is the Confederate Constitution, which would have been agreed upon by all states ratifying it. It would appear that one point of view you mention was chiefly and strongly held by all seceding states.
I never thought the picture was difficult to grasp, until some began the rewrite of history, making the picture ridiculous.
