oh don’t worry, there’s multiple specific ways to define colors. you can go out and buy a book that literally just has thousands of defined tones and their specific names. chartreuse has a hex code and a specific rgb value for example. you’re right though, laymen don’t have the right vocabulary to define colors specifically.
the only real point you have here is that color is defined by human perception. even the colors you call real are just abstractions based on what range of wavelength is visible to human perception.
all colors are defined be human perception. the only way to remove yourself from that is to use strict wavelengths. or you can realize you are a human and the only meaningful way to define this is by our perception.
I’m having trouble following you here, but it sounds like you’re just saying that the other colora are derived from mixing the primaries. that doesn’t make the colors you get from that a mental illness??
is mud not real because it’s just wet dirt? is steel not real because it’s just iron with added carbon? that’s silly.
if your only point is that non primary colors are made by mixing primary colors then congrats, you’ve taught a kindergarten lesson very badly.