Not that facts will be much good when arguing with you, but here goes anyways.
The McCormick Reaper was designed by Robert McCormick in Walnut Grove, Virginia. However, Robert became frustrated when he was unable to perfect his new device. His son Cyrus asked for permission to try to complete his father's project. With permission granted,[4] the McCormick Reaper was patented[5] by his son Cyrus McCormick in 1837 as a horse-drawn farm implement to cut small grain crops.[6] This McCormick reaper machine had several special elements:
The traction engine, in the form recognisable today, developed partly from an experiment in 1859 when Thomas Aveling modified a Clayton & Shuttleworth portable engine, which had to be hauled from job to job by horses, into a self-propelled one. The alteration was made by fitting a long driving chain between the crankshaft and the rear axle. [1] Other influences were existing vehicles which were the first to be referred to as traction engines such as the Boydell engines manufactured by various companies and those developed for road haulage by Bray. The first half of the 1860s was a period of great experimentation but by the end of the decade the standard form of the traction engine had evolved and would change little over the next sixty years.
For that matter, read what George Washington had to say on the subject. In his memoirs he wrote that it was getting more and more difficult to find work capable of being done by slaves and for which there is sufficient compensation to make it worthwhile to employ them.
The economic value of slavery was about to take a serious crash, and it was only a matter of time.
But the New York Empire Lords who wanted to keep their money stream rolling in didn't know that at the time, and so they launched a war against the South to get that slave money rolling in again.
It mattered not what advances in technology, culture, or government may come - they were going to have their ni**ers and they were hell-bent to murder anyone who got in their way.
Facts are not something you seem to be well acquainted with.
The McCormick Reaper was designed by Robert McCormick in Walnut Grove, Virginia.
You are aware, are you not, that the McCormick reaper was used to harvest wheat and not cotton?
The first half of the 1860s was a period of great experimentation but by the end of the decade the standard form of the traction engine had evolved and would change little over the next sixty years.
And that would have helped with cotton how?
In his memoirs he wrote that it was getting more and more difficult to find work capable of being done by slaves and for which there is sufficient compensation to make it worthwhile to employ them.
And yet 60 years later there were over 3 million slaves still being gainfully employed.
The economic value of slavery was about to take a serious crash, and it was only a matter of time.
Why?
Except that the population of slaves was growing at the same rate as white Americans, despite the abolition of imports of new slaves after 1808.
And along with the number of slaves the value per slave also increased dramatically:
Growth of slave populations in Southern States, 1770 to 1860:
Growth in total value of all slaves, 1800 to 1860:
At the same time, numbers of Northern state slaves dwindled towards zero by 1840.
The economic fact is that US Southern states were the Saudi Arabia of cotton in 1860 -- they produced the most, the best and the cheapest cotton available in world markets and so dominated the international cotton trade.
And this graph shows that US cotton production did not end in 1860, in fact continued to grow:
So there's no reason to think that cotton and slaves would not continue to be important to Deep South economics for many decades after 1860, had the Confederacy won it's Civil War.