Even if its not- it should be legal.

Just saw this argument:

“The South seceded. That made the war necessary. The South could have just peacefully remained in the Union.”

AKA: My wife wanted a divorce- that made beating her necessary. My wife could have just peacefully remained married to me.

Abraham Lincoln saved the union the same way that an abusive husband saves his marriage- by saying you aint going nowhere, bitch.