Not when they had such nice plans in place to bombard the fort into submission, if they didn't starve them into surrender first. The troops in Sumter had taken not a single aggressive, or even remotely hostile action against the South. The South had taken several aggressive steps against the fort. The onus for the war lies with them.
Wrong. If Lincoln had not attempted to re-supply, The South would not have attacked Ft. Sumter. Anderson would have been forced out in a matter of a few days. Lincoln had all the cards, and he played them.