Follow up, was there a movement to end slavery in the south, led by southerners?

As far as I know, the answer is essentially "no" to both of your questions. Almost everyone in the south relied on agriculture for their livelihood in some capacity, and the abandonment of slavery would have had extreme economic consequences (as it did post-war). As for your question about abolitionism in the south - there were certainly southerners who disapproved of slavery, but not to my knowledge anything resembling the abolitionist movement of the northeast. Southerners who came out against slavery during and after the Civil War were referred to as "scalawags" and there were a decent number of them.

Beginning in the 1870s, the south made drastic strides toward industrialization, especially in the textile industry - but the majority of southerners still worked in agriculture. The move toward industrialization was part of the "New South" movement, much of which stemmed from regret that the south had not industrialized sooner. The south wanted to radiate a fresh character to the nation and the world, and they chose industrialization as the primary path to this recharacterization and especially to the economic revitalization that the south so desperately needed.