Because the constant refrain of a certain subset of the southern partisans on these threads is that slavery had nothing, or very little, to do with secession. They'll point to tariffs, or navigation acts, or warehousing acts, or northern bankers, or even wild Indians on the Texas frontier as the source of their grievances, but never admit that the overwhelming reason the south seceded was to protect their slave property, as their secession declarations and a thousand other comtemporaneous sources demonstrate.
Watie would be the case in point of the denial school.
This should do it:
"That they have in violation of the comity of all civilized nations, and in violation of the comity established by the Constitution of the United States, insulted and outraged our citizens when traveling among them for pleasure, health, or business, by taking their servants and liberating the same, under the forms of State laws, and subjecting their owners to degrading and ignominious punishment;"
This, from the Mississippi Resolutions on Secession.
Do you not see the irony of a slaveowner bitching about someone insulting them or taking their property or subjecting them to "degrading and ignominious punishment?"
Such staggering hypocrisy would be embarassing if I was basing my arguement on it.
Plus, I'd be *damned* embarassed if, in this time when our soldiers are fighting and dying to liberate people I'll never meet and who will never be fellow Americans, the people I was defending in an arguement were bitching about slaves being liberated.