I’m more pessimistic than all of ya’ll.
I think it’s possible that with increasing industrialization of the South, you would have witnessed only a gradual phasing out of slave labor. It would have first started off with factory owners contracting labor from slave-owners–in much the same way that munitions factories during the Civil War did. I can envision planters buying heaps of slaves for the sole purpose of renting out to factories. I can envision those planters’ eyes popping out of their heads with greed especially during lay-by time, when most of their “workforce”, including the children, would be rentable. The profits from slave renting would keep wealthy planters from balking too much at the changing agrarian economy. But it would make smaller farmers jealous and anxious.
With further industralization, factories could then afford to keep their own slave labor. Factories in the north were already paying their “free” workers below-substinence wages. But with slaves, there would have been the added costs of actually buying slaves, housing, and feeding them–as well as providing medical care. There’s also the cost of overseers and silent rebellion–like the destroying of tools and stealing of property.
But I think the benefits could have easily been perceived as outweighing the costs, as had happened for almost 300 years. For one, you would have a self-perpetating labor force. Every child born in your factory is yours for a lifetime. If the breeder slaves aren’t producing enough, just go down and rape a few of them. The resulting high-yaller ones might make good guards or semi-skilled laborers.
Also, with slaves, there would be no worry about unionization. No one would lobby in Congress for a mandatory 8-hr day on their behalf. No one would lobby on behalf of the school-deprived nigra children. Well, of course a few “do-gooders” would. But they would only be joining the effete chorus of abolitionists who would have been successfully ignored for centuries. On or offsite rabble-rousers would be immediately put down just like unionizers were up North.
Thirdly, the long-lived and deeply-entrenched seductiveness of white power would continue to flourish under this system. Poor whites would get massively shafted by this industralized slavery, but they’d be somehow convinced that the system was a-ok since it would be based on white supremacy. At least for awhile. And then maybe you’d see a mass migration of poor whites up north, seeking jobs where they wouldn’t have to compete with nigras. Perhaps the fruits of unionization (shorter work days, livable wages, child labor laws, etc.) would also be attractive to them. Maybe the Southern power structure would then concede some things to them–like free schools, apprencticeship programs for skilled jobs, or sharecropping arrangements–that would shut up their whining and keep them around.
Even if the slave-based industrialization system I envision had been viable, I think it would have been inherently unstable and bound to fall apart in a competitive open market. I think a factory employing free labor will be more productive and produce higher quality goods than a factory composed of involuntary workers. Also, bad employees can be fired with little or no lost of investment to the employer. Will beating a bad slave make him better or worse? If he dies or runs away, his owner has lost money. If he beats him, he’s lost money too (overseers cost money, and while one slave is being beaten, another slave is slacking off or running away). What if no one buys the lazy slave off his hands? What if the whole LOT of slaves is the same way!?
And who would want to buy a car made by a bunch of pitiable, miserable slaves? The heart of every good-hearted American would break every time they turned the ignition. On the other extreme you’d have people who wouldn’t trust a car made buy a bunch of stupid, childlike, animal-like, black-beast heathens. Buying clothes made out of the cotton picked by pickaninnies is one thing. Driving around in a dangerous piece of machinery made by pickaninnies, bucks, mammies, and Sambos is quite another. In the middle, you’d have people who would just be uncomfortable with the unfairness of slave labor, both for slaves and the people trying to compete with them. I could see free-labor factory owners taking advantage of these feelings by marketing their goods with “Made with Free Labor” stickers or urging people to “Support Free Shops”. “Free” would eventually turn into a code word for “white”. Slave-based factories would suffer tremenduously and then fall into oblivion.
I don’t think slavery would have been necessarily abolished by the federal law. Not for some time at least. I could see domestic slaves being used well into the 20th century. Maybe the use of factory slaves would be eventually banned, but what would be the impetus behind banning farm slaves or housekeeper slaves or handyman slaves? I’m thinking a type of low-level slavery would have been allowed for awhile. Perhaps there would be restrictions against enormous slave plantations and factories (further concessions to working-class whites and abolitionists), but personal slaves would still allowed. Then later you might find states choosing to ban slavery within their borders as a way of improving their image and economy. The Great Depression would speed up this process since people would become unable to buy and support slaves, and the idea of “employed” blacks in a sea of white unemployment would ruffle a lot of feathers.
Just think: With no Civil War and no Emancipation, there would have been no Booker T. Washington or W.E. Dubious. No Harlem Renaissance. No Malcolm X, MLK Jr. No James Brown singing “I’m Black and I’m Proud”. Hell, no rock n roll, blues, jazz, R&B, or Motown. No Civil Rights Movement. There would be no myth that the North was a bastion of Black Freedom because there would be slavery in the North as well as the South.
Things would be dramatically different. Black people would be dramatically different. Racism in American would be dramatically different. The history of this country would be dramatically different.
I think that slavery, in the absence of the Civil War, would have been around for another 80-100 years. By the mid-40s, I think the country’s black population would have gotten so big that it would have been damn-near impossible to keep them enslaved without causing a huge, violent war. Also, I think the comparisons between Nazi Germany and the US from WWII would be too big to be ignored. International pressures from Britain and even the USSR ("How can you proclaim yourself to be a free democracy when __% of your population is in bondage?") would further force change from the federal government. However, we’d be still living, some of us quite comfortable and satisfied, in the Jim Crow era.