extremism
to violate “common moral standards”, particularly in religion or politics; considered far outside mainstream ideology
radicalism
Devoted to altering social structures through revolutionary ways and changing value systems in fundamental ways
fundamentalism
common characteristics of extremism
against any and all compromise, entirely sure of their position, advocate and use violence to achieve their ends, intolerant of internal dissent, nationalistic, demonize others,
where does extremism come from
Persistent experiences of oppression, insecurity, resentment, loss, and rage