And most poly relationships aren't stable for the 20 years it takes to create an adult.
looks at divorce rate I'd say there's not really a lot of evidence that most monogamous relationships are stable either. Do you have any particular reason to be claiming that poly relationships would produce a less stable environment for the kid?
Poly groups tend to be well-educated well-paid white people; the proper comparison of poly instability rates to monogamous divorce rates is not to 'the general population' but to the comparable demographic group. My understanding was that divorce rates in that comparable group are relatively low...
Recently, LWers Will Ryan and Divia Melwani (now Will and Divia Eden) were married, with Eliezer Yudkowsky officiating.
I've been to 40+ weddings in my lifetime, and this was my favorite ceremony yet. Here is the video, and below is the transcript of Eliezer's... what's it called? "Blessing"?