So it was about slavery after all. Yeah, I might have been concerned. I don't know if I would have resorted to armed rebellion though.
Unfortunately, slavery was incidental to the issue. But, in fact, slaves weren't purchased with monopoly money. They were expensive and represented the labor portion of the agricultural economy. And in no way, as is depicted by the letter in the subject of this thread, was the North a silver knight riding in to free the slaves.