Not going to watch the video. The goal, as I see it, is to remove liberals from elected public office. There are anti-gun non-liberals who hold, and have held elected office, but they are a rare breed. When liberals are removed from the seats of power liberty is more easily restored. Go ahead and try to convince the 20% to vote for liberty. I will try to convince those who are reasonable yet uninformed to vote for liberty.
I will address violence, from any quarter, if it manifests itself when it manifests itself.
Some "rampage" murderers are just plain nuts and I will not attribute a quest for celebrity or infamy to them unless they survive to tell us all that was their motive. Sane, rational people do not murder.That logic could be the use of violence to achieve social standing as in a gang dominant culture or it could be the use of violence to achieve immediate celebrity and infamy as in rampage murder.