Thee University said:
What would our country look like today if the South had won?
Would Richmond be the capital? Atlanta?
How many states would there be today?
Would there be a two party system?
Which countries would have come calling? Which countries would have pulled away?
World War 1 influence? WWII influence? Would there have been a Vietnam?
Would Lincoln have been assassinated?
International trade? Boom or bust?
What would our crime rate look like?
Would prisons be as large & numerous?
Would we have allowed immigration to be a major factor?
What would slavery look like? Would it even be an issue?
These are always interesting intellectual exercises. I'll give it my best shot.
Richmond would still be the capital. For starters it was already there and political inertia is hard to overcome. Also, population growth in the deep south like you see in the 20th century really only took off after the invention of air conditioning.
How many states? That is hard to say because this would have directly affected westward expansion. I have no idea how the southern states felt about manifest destiny apart from trying to balance slave vs non-slave states for representation in DC. Both the USA and the CSA might have expanded west. Or the USA may have expanded west to incorporate 3/4ths of the continent. Or several nations may have arisen, the Mormons getting their Desert Kingdom in Utah and the Pacific States forming their own nation.
Involvement in WW1 would probably not have happened, forcing the European nations to hammer out a more sensible peace treaty than Versailles, precluding a second world war. I doubt there would have been any interest in the sort of foreign misadventures as you see today.
The industrial revolution would have put an end to slavery as it did all around the world. The North American Negro population would likely have concentrated in what was left of the United States as a result of slaves running away and natural attrition after the end of slavery. You would see northern demographics look more like parts of the rural south, and the CSA remain a majority white country.
As a result, crime rates in what was left of the USA would be higher than those in the CSA.
At some point you might have even seen white northerners emigrate south or a form of segregation persist into the modern era.
I think the downstream result of this would be a very different immigration policy in both the USA and CSA than you see today.
The Republicans arose as an anti slavery party. There would be no room for it in the CSA. What would probably arise were Democrats who, like Jefferson Davis were advocates of a stronger central government from Richmond and Libertarians descended from Alexander Stephens.
Lincoln would not have been assassinated.
...and this future was probably as close as not firing on Fort Sumter as there probably would not have been the political will in the USA to launch a war against the CSA without that spark.