eselam, if you (or any other Muslim male) wants to understand most Western Women's attitude to Polygamy, then simply just flip it upside down.
Imagine you and your Wife were together, and then she decides to marry a second, third, and forth Husband. You'd hit the roof.
It's funny how Islam permits Polygyny with such "righteousness", yet if the -gyny of Polygyny is replaced with -andry, then there is Hell to pay and the Woman responsible is condemned to Hell.
Then again, Islam, like most religions is made by Men, run by Men, for the purpose of serving Men.