am yisroel: The women AZ is trying to help are those who will never be able to get married since there are no single men available. Even AZ acknowledges that his solution will NOT help all the current (and even next) generation of girls as there will still be many without an available man. Surely many if not all these otherwise unmarriagable girls will choose a polygamous marriage rather than none at all. (Besides, who wouldn’t mind a sister-wife helping out with the kids instead of a babysiter!)
