Thanks for researching that. I agree that, in practice, societies which allow polygamy probably have non-transitive marriages, and they could theoretically all

Thanks for researching that. I agree that, in practice, societies which allow polygamy probably have non-transitive marriages, and they could theoretically allow women to have two husbands so as not to give men more rights than women. In an alternate reality where the US constitution happened to define marriage as between "a man and a woman", I could imagine activists pushing for states to allow polygamy so that two men or two women could "indirectly" marry, and pressuring the government to avoid the issues experienced in Tanzania by writing laws and policies which effectively treat the connection between the leaf nodes as equal to their connection to the root node when considering questions of divorce, taxation, inheritance, parenthood, etc.