Societies globally, and especially in the US, has been inching toward dangerous grounds for a while now,
Consider this quote: "Ultranationalism, combined with the myth of national rebirth, is a key foundation of fascism.
[220] Robert Paxton argues that "a passionate nationalism" is the basis of fascism, combined with "a conspiratorial and Manichean view of history" which holds that "the chosen people have been weakened by political parties, social classes, unassimilable minorities, spoiled rentiers, and rationalist thinkers.""
LINK:
Fascism - Wikipedia
If you don't shiver a little when reading that, and see where some in our society want to take us, then you might be dead. Extreme nationalist rhetoric has now become part of modern day political debates. We're sleep walking into this.
As to the video posted, since free speech is paramount, we must accept these people. At least they are letting us know who they are. I expect every single one of these people have a big fat file at the FBI.