msg_v2 has the right idea with Ne being global and Se being local. And therein lays the issue both in how they are perceived online and the disconnection with reality. Se is a localised perception function it absorbs the information at hand to help to make a decision. Ne is a global perception function it grabs every pattern it has ever made and tries to apply it to the situation, usually unconsciously. That is the reason Se has the reputation it does because it is so very localised the further away you view it from the more absurd it seems, the more disconnected it is from the events around it. Ne has the opposite effect going on the closer you are to it the more it seems so very strange, but the further away you look at it from the more sense it makes. Which let’s face it creates a strange situation where in reality Se makes perfect sense and Ne is just plain mad, and through the disconnected looking glass that is online communication, the reverse is true.
As for the example about your sister, that was kind of a terrible example of being absurd. I mean if I was to speculate, and make grand assumptions, I would guess that you are from the southern states of America. Somewhere in the Bible Belt, and that the performance had more to do with showing their contempt and anger at the current social and political conventions of the state and area; mainly because chanting the same thing over and over is usually a sign of intense anger.
At the OP, the thing to remember about Ne dominant and auxiliaries is that their absurd statements are often either a metaphor or an analogy for something else it’s a tool for expressing multiple points of view and layered meaning as succinctly as possible.