If anyone is wondering when it will happen, compare to past historic events. The Revolution was an event that happened slowly and built to a crescendo. Same with the Great Depression, and great wars. They build up and then shots are fired. We're in the beginning stages of a civil war like fracture, and the democrats will one day go too far. Antifa-like groups will hurt conservatives, and then shots will ring out and leftists will die. I can imagine such things will happen.
Only President Trump can prevent an all-out war from happening. May God help him in staying the violent demoncrats from hurting conservatives on a mass scale.