I have friends on FB who appear to think that our current political situation is just as dire as in the Civil War
Those people aren't arguing over anything important right now, but it should be noted that even the conflicts of the 1860s or 1770s totally pale in comparison to what happened in Germany and USSR in the 20th Century. Millions of people truly ended up in their graves at the hands of their own govenments. Seriously amazing shit can happen in real life, and you don't need fictional works to trigger your imagination. (There are so many ways to be a deluded paranoid wackjob, but knowing real history isn't one of them.)
So they're wrong, but maybe they're wrong because they're thinking so small; incited by the media into pretending the minor divisions among Republicrats are a big deal. What you might wanna think about, though, is whether their wrongness is worse or better than the everything-is-fine-let's-not-get-excited outlook. It's hard to imagine serious shit going down, but might your imagination (and mine!) have also failed, in the 1920s, to predict what ended up actually happening?
It couldn't happen here, or it couldn't happen in modern times. It couldn't happen, because .. umm .. because .. uh .. er .. uh .. because human nature has ch-- .. no, wait .. because we'd never be fooled .. no, that ain't it .. because ...?
I'd go easy on those fellas. Call 'em out on their bullshit, ok, but even if when a nut stockpiles for all the wrong reasons, it isn't any worse than what all of us routinely accept and do. We all send money to Washington, where we know billions of dollars are also spent to increase weapon stockpiles orders of magnitude larger, which are just as devoid of any sensible purpose as a nutjob survivalist's gun collection. If "gun nuts" are nuts, then what are we, the people who are arming our government?