Legally speaking, no. Equal protection under the law is guaranteed by the Constitution and a lot of case law. Demanding legal recognition and special privileges for any particular type of relationship you want is not. It's a public policy decision, which is the prerogative of the government (or not, if you're a strict libertarian).
Lex Dei? Sorry, I don't buy that. Government is the servant of the people, and has no perogatives or perquisites beyond those which are accorded to all citizens.
They don't, and, unlike gays, their rights are already being respected.
No, they're not, which you admit to.
If you're asking why polygamous relationships deserve less recognition than monogamous ones, this thread is filled to the brim with excellent reasons.
Point one out. All I've seen so far is appeal to authority, non-sequitor, argumentum ad consequentiam, argumentum ad baculum, and unproven assertions.
Yes, as long as its to one person at a time,
What? That's like saying that black people are allowed to eat at white establishments, as long as they're white. Like saying homosexuals have the right to marry anyone they want, as long as it's a person of the opposite sex (like others here, namely tyr_13, are saying).
In English, polygamy is marriage to multiple people at the same time. Marriage to one person at a time is "monogamy". The one is not the same as the other. I shouldn't have to explain this.
So, in plain English, your answer is no, they don't have the right to be respected. Why are you so afraid of plainly admitting that?
there are no reasons to regard them as different except for irrational ones based mostly on religion.
Others have claimed differently.
Monogamous marriage and polygamy are fundamentally different: socially, legally, and practically.
1) An unsupported assertion. Explain how they're differnet socially and practically. The legal issue is irrelevant, since laws can be changed, which is what this entire thread is about.
Just think about everything we've talked about in this thread, all the money, all the legal and regulatory nightmares we'd have to endure to even begin to reconcile our current government and social system with polygamy. It would fundamentally redefine American family life. It is not equivalent.
Argumentum ad consequentiam. And patently untrue, as has already been demonstrated.
A semantic distinction that's never made sense to me. People have what rights they can defend.
So, someone who cannot defend his right to life, doesn't have one? Someone who cannot defend his right to private property, freedom of speech, or freedom of association, does not have those rights? Screw the minorities, if they deserved to be treated like the rest of us, they'd be able to defend themselves. Argumentum ad baculum.