Those morons live in a bubble of urban security and politically correct stupidity, they have no clue as to what will really happen.
Food doesn't grow in Albertsons, it is only produced locally in rural White America, where Trump garners the bulk of his votes.
The front-lines of US wars to this very day are fought mostly by 'red-necks,' and that Trump loving sub-population will remain more militarily inclined for the foreseeable future.
In the event of a civil war, those 'hillbillies' will almost certainly not be fighting to keep the US intact as a single country.
And unlike the last one where both sides truly belonged to the same group, this one will be of a completely different nature.
Assassinating Trump might be the last mistake they make.