I too would be very interested to know what oppressions the South was suffering when the secessions started.
The people in the southern states felt their economy, their culture, and their way of life was being impugned and threatened by the people of the northern states and by the government in Washington. They also felt that their right to peacefully secede was being denied. What you think or what I think doesn’t mean much. All that matters in this discussion is what Southerners thought and felt. History records that they felt they were living under the rule of an oppressive government. Surely you don’t think they seceded because they were getting too much love and respect from the North.