Do you see that you no longer have a discussion on this site? You just get attacked. Everybody knows everything, and everyone else is just stupid.
You noticed that too, eh?
When the Southern States went to war, each issued formal documents of secession wherein they set forth their individual reasons.
These documents are seldom mentioned, read or studied.
If you want to know why the South went to war, read them.
The South tells you why and its not pretty.