You are judged by the company you keep. Paul repeatedly appears with Alex Jones and is supported by white supremacists and conspiracy theorists. This video just shows the type of vile people who follow that guy. As time goes on and Paul gains none additional support from mainstream America, the kooks will get even kookier.
You don't even know these people. Many of them were young adults who were volunteers from other states. Calling them white supremacists, communists, kooks, and other names that liberals usually resort to is pathetic.