This is the problem with viewing the state as the primary nexus of oppression. Power people free of the state are totally willing to do awful things themselves without needing to form any kind of official government to do it.
Because it frames the civil war as a conflict primarily about the south breaking free from northern domination and liberating itself from an oppressor instead of what it actually was which was a war about ending slavery in the United States, which is objectively a good thing. It just shows Bakunin was not thinking very materially.
Kropotkin called on anarchists to take sides on WWI against "German aggression". Fortunately most anarchists at the time realized that was dumb as hell and it ruined his reputation for a good while. https://en.m.wikipedia.org/wiki/Manifesto_of_the_Sixteen
Guy probably had brainworms about the Napoleonic wars. Still, not nearly as absurd as bakunins takes, kropotkins reasoning did have a grain of truth to it in that the Weimar Republic was highly destabilized and was a toss up for the communists and fascists early on