Once they were at war, they imposed tariffs, seized property and did everything else imaginable to try to survive - as any government would under those circumstances. That is not what they set out in the Confederate Constitution when they thought they would be allowed to live in peace.
LOL. You are so full of Southern-fried crap. So those Damn Yankees made them charge 25% tariff rates. ;~)). So did they amend their Constitution to allow those high rates or did they just ignore it?