My point is that retard Rick could be the "central finite curve", and the other Ricks just hate the fact so much they made up a euphemism for him but don't kill him out of a fear of destabilizing the system of Ricks.

We don't really know what it is at the core, and so these girls could very well be the human "central finite curve", and not "off" it in any sense.

I was suggesting we not project our biases onto things like "central finite curve", eg that it's a curve which embodies "normalcy", until we see what role they actually play in the story.