The Supreme Court did not redefine marriage yesterday. In fact, they said the federal government could not define it differently than the states. If a state legalized same sex marriages, then the federal government had to recognize that marriage.
Since no state has legalized polygamy, then it is a logical fallacy to say the Supreme Court opened the door to it.
They did no such thing.
Since tone does not translate well when written, please believe me when I say that my response is not meant in any insulting, smarmy, or demeaning way to you...I think you represent a large number of intelligent individuals who either do not understand precedent or who have never studied how judges use previous court decisions (often ones that, on the surface, have nothing to do with the current cases) to validate their current decisions.
Your statement here is wrong. While the Supreme Court did not say anything about polygamy yesterday what they did was open the door widely for individuals who want to marry more than one person to be able to legally pursue that option using this case and the states that have legalized gay marriage as PRECEDENT.
A Supreme Court case many years before Roe v. Wade granted MARRIED COUPLES ONLY the right to go to their family doctor and ask for birth control. None of the Supreme Court justices who made that ruling thought that what they were deciding had ANYTHING to do with abortion...but that case was used, along with others, to legalize abortion. This isn't a pro-choice or pro-life statement...just fact. Precedent often takes turns that the judges who made rulings did not anticipate.
In this case however, it is clear that individuals seeking to marry not one, but two or more people can utilize the cases in which people fought to redefine the previous definition of marriage in order to have their own definition of marriage recognized as well.
Precedent doesn't mean that our current Supreme Court wants to legalize polygamy. It means that the ruling they made can be used to fight for legalized polygamy.