I expect this kind of garbage from the imbeciles, but it surprises me coming from Goshin.
You are cheerleading violence against people practicing free speech.
Freedom of speech is not freedom from criticism.
I think I see what you're getting at, here.
Firstly, no definition of Liberal Democracy in today's context would ever allow for the enslavement of it's citizens. It's just not going to happen.
Now, if we'd like to say 'in the context of the times' or some-such, that Liberal Democracies had slavery, fair enough - though I have issues with that, and at best might call them 'flawed'.
But we've got to remember, we're no longer in 1861.
You're graph is comparing an archaic era (Civil War era), with a modern one (WWII era), and then presented to us in today's context.
Which era's definition is correct?