“We defend the principle secession, not every action taken by the south in those times.”
This is so important that I’m going to repeat it. MANY anti-secessionists attack the entire concept of secession by attacking specific actions taken by the Confederacy, which is such an obviously terrible argument that it shouldn’t even have to be refuted, and yet it’s so common, it does.
The fact that someone supports the right of secession does not mean that said person agrees with every single action taken by the secessionist government under all circumstances. It doesn’t mean we like slavery, it doesn’t mean we approve of the tyrannical and socialist economic structure of the CSA, etc.