If Major Anderson had not violently seized *THEIR* fortress in December of 1860, and if Lincoln had not launched a violent attack against them in early April of 1861, then they would have had no need to drive out the invaders from their homeland on April 12, 1861.
God you’re stuck on stupid!
Sumter was a FEDERAL installation. It was situated upon land that was ceded by South Carolina to the federal government IN PERPETUITY and built using federal funds. It did not belong to SC.