What was the entire population of the slave states during the civil war? That would be my answer for anyone who refused to accept the abolition of slavery.
Yikes, that's a little harsh don't ya think? Don't get me wrong, I abhor slavery and it really is a dark mark on Southern (and American) history. But would killing every last man, woman and child in the South be worth ending it?
Only those who continued forcibly resisting the abolition, of course. Otherwise it's genocide. But yeah, anyone who kept fighting and couldn't be contained by jail, I think it's reasonable.