The CSA would neither industrialize nor be able to engage in imperialism. There'd be industrial areas in the Confederacy, primarily in the Nashville and Richmond regions, and there'd be a major trading port in New Orleans, but in terms of a serious industrial economy or imperialist power games, the CSA has neither the power nor the will. The CSA's closest analogy in this sense is Tsarist Russia: immense potential, no ability to ever tap into the potential, a capital with one of the largest urban working classes in the country, and industrial areas that are very close to any realistic US-CS border, an economy reliant on a massive unfree illiterate labor basis, and the unenviable combination of sheer territorial mass and underdeveloped territory.
Only Imperial Russia had Tsars and ultimately the Bolsheviks who were able to bypass some of these factors (but as 1991 showed only some), the CSA is unlikely to find either and in terms of imperialism, CS imperialism is purely ASB. The CSA might actually give Mexico and Spain moments of military awesomeness.
So the above assumes that no radicle changes could occur in the domestic economic, social or political climates of the Confederate States from formation in 1861 to the modern day.
Which is one thing I never understand with all these people who want to portray the Confederacy as ultimately doomed. Human nature and evolution is never taken into account.
Its always portrayed as the Confederacy being totally incapable of changing in any way, shape or form from that of the 1861 version unless the CSA collapses or gets re-absorbed by the Union.
As if people want to put the CSA into a vaccum which isolates it from the influence of the rest of the world, or even from major domestic upheavel like slave revolts or the impact any widespread failure of crops would cause.
It's one thing to say that the Confederacy would not be a leading power of the world and would not industrialize meaningfulling in the 1800's, its another thing entirely to say that the Confederacy would not change in any meaningful way from its formation as the old world progresses to the modern one.
And that what's you've implied when you say the Confederacy hadn't the will to change as that leads down the road of the idea that the Confederacy would always exist in a vaccum and nothing would ever happen to force them to change their mindsets.
And I just cannot agree with that kind of mentality. The world has never worked that way. When Japan attempted to exist in a vaccum they were forced out of it by a more modern power and dragged into the modern world. The same would be true of the Confederacy even if you want to ignore the fact that the Confederacy would have been reliant on trade for economic survival in the 1800's and would never be closed off to the rest of the world.