I didn't say they were the violent side. I said the violence MAY be instigated by the left. If we get a right wing sweep, there won't be much reason for the right to get violent. It will start out as protests, but protests can get violent. It won't sit well with a lot of people that the President atempted a coup four years before.
Lots of people on the left have weapons. 20% of Democrats own guns, and it only takes a fraction of a percent to make trouble.
But there is one reason we might not have much violence. Men are the violent ones and the majority of the men in the country will be thrilled by a Trump presidency.