@Qingu
Consider this from Georgia:
The material prosperity of the North was greatly dependent on the Federal Government; that of the the South not at all. In the first years of the Republic the navigating, commercial, and manufacturing interests of the North began to seek profit and aggrandizement at the expense of the agricultural interests.
These are reasons independent of slavery. Now, in honesty, slavery was the fulcrom on which the entire war turned. You’re right about that. But to say it was “about slavery” is to deny the complexity of the issue of slavery itself as well as that it was the only reason. That’s naive as well as misleading itself.
Further, you’ve linked to information from only four states, and the documents you’ve quoted are excerpts from the DECLARATIONS OF SECESSION not the Articles of the Confederation. That’s not only misleading, but could be considered an outright lie, but is more likely a profound act of carelessness.