Trump is right, hundreds of thousand were killed, a country ripped in half, maybe it could have been negotiated. The rats are evil bloodthirsty demons.
After the Civil War sharecropping worked out so much better for plantation owners that Southerners did not complain about emancipation.
There was no longer a need to pay for expensive overseers and the blacks were self-motivated to work hard.
The nation tried for years to negotiate its differences. Consider the great compromises regarding admitting new states during the years prior. The intractable problem was politico-economic: slave states had a political advantage through the slave populations which enabled them to gain economic advantage. If one had to pick one cause of the war, it would be the fight to prevent the expansion of slavery, not slavery per se.