@beverett ,
It was a "peculiar and unique way of life" to the outsiders who toured the slaveholding South, both from up North and from other countries. Reading some of their accounts is quite an eye-opener.
What other means should Lincoln have tried? He and members of the Republican Party stated they had no intention, nor right, even under the Constitution, to interfere with slavery where it already existed. Southern slaveholders were given 3/5ths of extra votes for each of their slaves, giving the South political power in the US government all out of proportion with the number of white voters. Lincoln had won a free and fair election. Should he have went back on his party's platform and promise to the voters to keep slavery out of the federal territories simply because he HAD won the election?
You might also want to check on whether the mechanical cotton picker "was already invented" in 1860. It is my own understanding from other member's posts here that the first truly mechanical cotton picker was not produced and in use until the mid-20th century.
Slavery was the issue and that issue was firmly rooted in the slaveholding South.
Unionblue
PS: Found out about mechanical cotton pickers. Hat tip to
@trice :
Rust Cotton Picker demonstrated in
1936.
International Harvester introduced the first commercially successful cotton picker in
1944.
Allis-Chalmers Company introduces their cotton picker after
WWII.