Because that’s the only way I’ve ever seen a polyamorous arrangement working in practice
And we know that the only things that exist are the one you have personally seen, so neutrinos, ultraviolet light, Greenland and the dark side of the moon don’t exist. Right?
It’s more like: I’ve only ever seen two unicorns, and both were white. Someone is trying to convince me that pink unicorns exist and I am saying I would like to see a pink unicorn.
Seems like you are intentionally trying to start a conflict where none exists.