[BroJoeK]

jmacusa: "What do you suppose America wold look lie today if the South had won the war.
What are your thoughts on that?"

Something like this, plus CSA colonies in the Caribbean, Central & South America.

And the world would look more like this:

[jmacusa]

How long would generations of slaves, African-Americans by birth, those bought over first in chains, those who had fought for the Union have been willing to go back to the lash? Would has a have risen up? A slave revolt in a victorious south would have been a horrifying situation, most especially for the slave population.

[DiogenesLamp]

That's really funny. You are justifying past horrors by pointing out future horrors that you presume would have occurred.

It's just as likely that the Confederate States would have thrown in Early with England in Fighting World War I, (Because England Recognized them and helped them win Independence.) and as a result, Germany would have been defeated quickly. They wouldn't have had time to send Lenin to Russia, and that would have wiped out the Communist menace before it started.

So since we are predicting fantasy histories, I will argue that the Confederate Defeat in the Civil War caused over 100 million dead in the 20th century.