Why did Lincoln’s election trigger the secession of the Southern states?

PLEASE HELP!!!

The Southern states were already pretty angry, but when Lincon got elected, they exploded. Southerners were feeling the threat of Lincoln and believed that he would put an end on slavery and its expansion. The North was gaining more power, and the slave states had deteriorated in their influence and presence in the House of Representatives. The South Feared that the North had more power over them and that the North would be able to essentially boss them around. Lincon's Election only made this paranoia worse.

Explanation:

a.tensions between the colonial elites and the backcountry men of virginia.