Anything posted in the immediate aftermath of the election is part of coping, so I take this sort of thing with a great heaping helping of salt. The right wing did it when Obama was elected, after all, and outside some squawking about birth certificates nothing came of it.
Whether or not it sputters out in this case depends on what happens in the first three to six months after Trump takes office. If he ends up more moderate than he was on the campaign trail, then things will almost certainly continue on as usual (so to speak). We'll probably see some regressive tax policy changes and erosion of various minority and women's rights, but nothing too catastrophic. The poor will get poorer, the rich will get richer, and the environment will continue to get worse at the same rate it is today.
Alone, those things aren't enough to spur serious action.
If, however, he manages to convince the Senate and Congress to go along with some of his wackier campaign promises, then there's a very real chance things could get serious quickly.
- If he trashes too many social support nets, then all bets are off. If you and your family are starving, you'll do pretty much anything to get food, and if it happens in bulk you have the spark of revolution on your hands. Throw a heavy-handed response to rioting and you have martyrs and a circle of escalating violence.
- If he makes enough blatantly discriminatory changes and gets them through a stacked Supreme Court, he could provoke enough ire to prompt serious nonviolent secession talk. If, for example, he bans all Muslims or Mexicans from entering the country, and his ban survives a supreme court challenge, California will look long and hard at the idea of leaving because there's a large enough majority of people that don't agree with that kind of action here to support that.
If all he does is chip away at the progress made in the last ten or twenty years, he'll be fine. If he starts taking a pickaxe to things that have been part of America for the last sixty or seventy, all bets are off.