All of what you said was true, but were still only minor contributing pieces to the puzzle. The buzzards and crows hovering over and roosting near the battlefield are neither it's combatants, nor it's causes.
And still doesn't ask the right question. The question you have to ask is this:
"As a slave-owner in the South, what can I say that will motivate the over 80% of Southerners who are not slave-owners to put aside the plow, pick up a weapon, leave friends and family and harvest behind, and risk their lives in order to defend my right to keep my slaves?"
The answer is simple:
Nothing. Because there is nothing you can say that is going to motivate the over 80% of Southerners who are not slave-owners to put aside the plow, pick up a weapon, leave friends and family and harvest behind, and risk their lives in order to defend your right to keep your slaves.
Fortunately for you, you won't have to. The US Congress is going to do it for you.
In the 1800's, the still new nation of the United States of America still carried an enormous war debt owed to the King of France. The only form of taxation at that time that was available to the US Congress for bringing in revenue to help pay that debt was in the form of "excise taxes", in other words, taxes on exports. The only states that were producing large amounts of the the kind of exportable goods that Europe wanted, were the States of the agricultural South.
So the US Congress hatched a plan. Following The King of England's previous example, they just would monetize the land mass of America, and use that as collateral for more loans.
The problem is: The US Congress is not the "ruling monarch" over the land of the United States, the people are not it's subjects, and the land is not theirs to use for their purposes.
The legislation did not pass, of course, but the damage was already done. When the news that their farms and the future livelihood and well-being of their families were in danger of having a lawyer for the King of France suddenly showing up with a bill of sale from The US Congress and a deed to the property, that their property, futures, hopes and dreams were on the auction block? Because of those bastards in Washington?
Southerners who were not slave-owners put aside the plow, picked up their weapons, left friends and family and harvest behind, and went off to risk their lives.
(post is archived)