class warrior       
noun [ C ] uk/ˌklɑːs ˈwɒr.i.ər/ us/ˌklæs ˈwɔːr.i.ɚ/
 阶级斗士
a person who argues or fights for the interests of a particular social class
  a group of class warriors and alienated youth 一群阶级斗士和异化青年 
 He’s a traditional class warrior with a narrow world view. 他是个传统阶级斗士,有着狭隘的世界观。 
 See: class war
 - More examples
 - She grew up in an old factory town and describes herself as a class warrior.
 - Even class warriors feel a powerful desire to pass on privilege.
 - Despite what class warriors insist, foxhunting appeals to rural members of all classes.