anon, I disagree with you that there is currently in the general population much animosity towards it. First of all, it is not known of much by the general populace. Secondly, in the places where polygamy is practiced in America, i.e. Fundamentalist Mormons, certain Muslims, and certain African immigrants, there isn’t much hostility towards them for this reason.
Legally a common-law marriage is virtually the same under the law as a civil marriage. I was not referring to common-law marriages. My point was that there is no secular law prohibiting a man from living in the same home as two women, so long he does not civilly marry them. (Common law marriage is only possible in 11 states. And it is generally only achievable if both parties desire to consider themselves to be in a common law marriage.)