Here's the difference:  When Obama came in the 'conservative' doomsdayers were mainly complaining that Obama's government was going to come seize their guns.  That was patently ridiculous since he couldn't succeed in even getting the wimpiest of gun control measures through congress.  I mean, really, were any of them worried that a bunch of hippy activists were going to bring their Glocks to the fight?

Now however, people don't worry so much about our government attacking us as much as the violent types like white nationalists etc. being given free rein to bully and intimidate vulnerable populations.  Will there be lynchings in the streets?  No. But the tenor of the country has changed for the worse nonetheless.

Then of course there are the wars, shredding of the social safety net, and large disregard for the environment that are very legitimate fears, as demonstrated by the Trump/Bannon administration's actions.

The world didn't end under Obama.  Under Trump?  Wait and see.