It seems to me that a lot of younger people who want to claim they are poly really just want to continue hook-up culture without being judged. They want to do what they want, without giving any consideration to the other people it affects (which in truth, isn't any sort of relationship) and they don't want to do any of the communication/negotiation work that it takes to be successfully polyamorous.

I agree completely about hierarchy. My husband/nesting partner and I have been together for over 30 years. We own two houses together and have a special needs young adult son who will always need our care. Darned right he is my priority. That doesn't mean other partners don't get treated with love and respect, but they will never have the same place in my life that my husband does - and they are all OK with that - because we are all adults.