A perceptive commenter  over on the twittermachine has said, “Ah! I see #USA has chosen a coup over a civil war (for now).”
That’s probably the most charitable interpretation for Obama’s inaction.
I do know that my anger — it’s more than anger. Rage? Fury? — is based to some large extent on my own relative safety. Financially, I’m just this side of the line so I won’t be first to suffer the outrageous slings and arrows launched by the bullies in power. It is a bit of a luxury to be able to demand that people do the right thing.
That said, though, I can’t stop myself from feeling that demand.
Our closest parallel is Lincoln and the slave trade. The Civil War cost lives and money, but that doesn’t seem like a good enough reason to say, “Oh, bother. We’ll have to live with slavery for some people because otherwise I, personally, may have to pay a price.”
The Bully-in-Chief-not-Elect — installed by vote suppression , the clickbait  chasers  in the media and everywhere, the  FBI , and Russia , in that order of blame — the BICnotElect wants to use everyone with less power to get richer, wants to make most of the country destitute enough to use that way — and we’re supposed to let him go right ahead because doing anything else would cost us.
When the alternative will take more than you can count, worrying about how much something costs is not rational.