Still doesn't answer my core question re if there had been no institution of slavery, would there have been a Civil War. To take it even a step further, would America have been able to decouple from England and have the wealth and will to win a revolution. A broader guess by me is that we would still be in the orbit of England like Canada and Australia. Even may have fractured into more than 1 country. Moot but interesting to surmise.
The American revolution had nothing to do with slavery. Slavery was far more common and prosperous in other British colonies than in the 13 colonies that would become the U.S.
The British were far more involved with slavery.
In the 1770’s slavery was not a big part of the economy.
The conflict between the north and south went back to Jefferson vs. Washington and Hamilton.
Jefferson wanted an agricultural society with a few wealthy plantation owners and many poor, subsistence farmers. Washington and Hamilton wanted a manufacturing economy and a large and prosperous middle class. A slave based economy was part of the Jeffersonian plan.