Did Lincoln not run on a platform of no compromise abolition of slavery leaving choice besides accepting economic ruin or war?
The slaveowners in the Deep South didn't want that. They were convinced that the cotton boom would go on and on. In the Upper South there was more moderation, but still, slavery was a part of life and the basis for society and it was hard to imagine what would replace it. It was all the harder because of the fear of abolitionists made Southerners close ranks.
Did Lincoln not run on a platform of no compromise abolition of slavery leaving choice besides accepting economic ruin or war?
He didn't. He wanted no compromise on slavery expansion into the territories, but he wasn't an immediate abolitionist. He was willing to let the South continue with slavery, though slaveowners feared (with reason) that Lincoln and the Republicans would attract supporters in slave states who would eventually do away with slavery in the Border States and Upper South. In the Cotton Belt, they did not want to transition away from slavery.
Maybe in 1864. He did not in 1860.