Lior: And yet you can do T’shuvah for Mishkav Zachor. You cannot for certain business practices.
That aside, there are some polygamy cases making their way through the courts (I believe one case is a trio of women who want their “marriage” accepted). Frankly, I want to see the end of marriage as a state-recognized institution. It’s against the First Amendment anyway. Give free reign to anyone living together to legally/monetarily declare themselves a “household”/”unit” or whatever. Then let people who want to get “married” have marriage defined by their own terms. By us Orthodox Jews, that would mean only monogamous heterosexual marriages. By other people, let it be whatever they want it to be. It should be a meaningless legal term. The fact that we’ve given a religious institution legal meaning is what is causing all of these problems anyway.