Nothing about what I said is at all derogatory toward women. If somebody wants to have two simultaneous but separate relationships, and both their partners are aware and okay with it, there's nothing wrong with that.
If somebody wants to have a relationship simultaneously with many people, and everybody involved agrees, there's still nothing wrong with that because everybody involved is an adult who is making that decision consciously.
Notice the lack of any gender specification in the above statements.
If there exists a culture where men forcibly marry multiple women who don't want to be part of a polyamorous or polygamous relationship, that's bad, but not by the nature of the definition of polygamy.
