I really find it disturbing that a whole bunch of white people with high powered weapons are needed to police a black community with (mostly) peaceful demonstrations.
I personally think they are a bunch of fringe types who are looking for a way to exercise their 2nd Amendment rights (and maybe shoot a black person or two).
Does this sound like a guy who wants to run around shooting black people to you?
An Oath Keeper in Ferguson Denounces Abusive Policing - Hit Run Reason.com
You do realize as well that many of the businesses and places these guys are standing guard at are owned by black people and other racial minorities.
Maybe you should put your bias aside for a few seconds and actually try learning about who these guys are and what they actually stand for, but I realize making blind assumptions is a lot easier.