They contribute nothing to help society, they only disrupt it. These people are antipeople for the fact they are enemys of the people
Other terms are "antiperson" for a single person
"This antiperson wont let someone have thier say, they quickly grow voilent and yell abuse threatening to kill the innocent person"
"In the eyes of the newly formed Atlantian Government, these people are a waste that do nothing to contribute to the benifit of society. Hereby Atlantis will either deport the antiperson or if not avialable. Recycle them for fertiliser"