Evidence says otherwise. Read a state by state comparison in “Yankee Leviathan.” Pretty shocking the limitations on freedom of whites.
But, a story: when in the rock band we were playing to a black audience once, who wanted soul. We, of course, didn’t play soul.
“How about some Jimi Hendrix?” we asked.
Audience member: “He ain’t no good. He daid.”
Hence, Lord Acton.
War measures hardly seem a proper method for judging.
Otherwise Lincoln’s abrogation of habeas corpus, shutting down newspapers, arresting the Maryland legislature, and similar actions would be the standard for judging the Union.