Wishful thinking is a product of fanciful imaginings, not reality. Eight years ago, tons of people imagined that Obama would suffer an assassination attack during his term in office. The reality was that he’s just fine and dandy. Now people are imagining that there will be some sort of armed uprising after Trump loses. The reality is that political violence has been on a steady decline in the United States for many years. The reality is that people in the contemporary United States do not use to protest election results. In 2012, Trump called for revolution after Obama’s victory. The reality was no one listened to him then. They will not listen to similar calls now.
It's not like there's going to be another civil war in the U.S. anytime soon. Where are these people going to get tanks, armoured infantry vehicles, and fighter jets? All they're going to have is a bunch of guns.
The odds of organized violence are small but unusually high for an election in the post-Civil War US. Pulling a number out of my posterior to quantify the feeling in my gut, I'd say there's a ~3-4% chance of sustained violence (mostly something like a lowish-level rural insurgency or a notable organized terrorist campaign, with a full-scale war being much less likely) motivated by the outcome of this election in the year following it. This is how risk works: if you go drunk driving over a distance of 10 miles tonight, you'll survive without being arrested over 99% of the time, but that doesn't mean that the risk of dying/killing someone else/getting arrested is not worth considering. If you go sober driving over the same distance, the odds improve dramatically but obviously stay shy of 100%.
I do not share Commodore's optimism that a rural insurgency would be crushed particularly easily. Of course they would be massively outnumbered and outgunned, and it's nearly certain that no high-level military officers would join the rebels and bring their units with them, but asymmetric warfare rarely ends quickly despite its asymmetry. Militia types tend to be extremely well-armed and live in rural and often rugged areas where it would be very difficult to flush them out. I'm sure they'd lose eventually, but it would not take very many serious rebels to cause a large amount of mayhem over a long period of time.