It is typical for the uneducated to come across a document of which they have no understanding and to send it off with a rude "got you" note to one who does understand the document.

I have explained the Southern states secession from the union in long essays. See:
https://www.paulcraigroberts.org/2017/08/23/know-called-civil-war-not-slavery/ and
https://www.paulcraigroberts.org/2017/08/28/weaponization-history-journalism/ and https://www.paulcraigroberts.org/2017/09/18/whatever-happened-america/ and https://www.paulcraigroberts.org/2015/04/13/power-lies/ and https://www.paulcraigroberts.org/2017/08/21/trump-american-history-assassinated/ .