this, tbh. to a large degree.

anecdotally, all those I know who practice poly, and name it as such, also say they have asperger's.

I wonder if it's also easier for people who have less family relationships going on.

Me and my girlfriends are all distant from our families. If I regularly visited my parents and siblings and spent time with them, I'd have less time for romantic partners.

I wonder if there's a need for secure family-like relationships, and where the family of origin has failed, people are more likely to seek that feeling from romantic partners. "There is no form of incest greater than T4T"