OK.
What were the abuses the seceding states suffered that caused them to disunite?
What ends were being destroyed?
What made the spoiled confederates pick up their ball and go home?
Non eneumerated powers exercised by the federal government: protectionist tariffs, subsidization of internal improvements such as canals, roads, railroads, harbours etc., a federal banking system, bounties paid to fishing, shipping and manufacturing interests, the refusal of northern states to abide by their agreement regarding slavery, the attempts to incite insurrections and revolts, the attempts to prevent migration west & northward - which was declared unconstitutional years before - to name a few.
What made the spoiled confederates pick up their ball and go home?
Why couldn't the spoiled yankees abide by the terms of the Constitution and decisions of the US Supreme Court?