Democrats are “summoning the demon of political violence,” meaning they are taking active steps right now that will result in blood spilling onto the streets of America. And they are doing it willfully. This is the outcome they want (see below for why). Essentially, Democrats operate from the rule that if they can’t control society, they will destroy it.
To understand how this is going to happen, recognize that elections are a civil replacement for political violence. Before elections and democracy emerged, the rulers of nations were largely determined by who could kill their political enemies and seize power. For millennia, nearly every national ruler was a mass murderer, since obtaining political power required killing anyone who stood in their way.
Elections sought to make the process of regime change more civil, allowing the people to choose their representatives in a system of voting that, to function in a civil manner, requires all participants to agree to the outcome of the vote, even if their favored candidate loses.