I guess there's a fifth bucket too, but that fifth bucket is pretty much "other targets of the pogrom" and doesn't really require you to match response to type since you don't really have to explain the situation to them or develop a strategy for coexisting - they already know what's happening, how it's happening, and usually how it's fucking with you psychologically. You can reach understanding/peace sometimes with only a glance. The fifth bucket is no bucket; it's shared experience.