The difference is that gun ownership is overwhelmingly lawful. Gun owners who commit crimes are the exception, not the rule. Precisely the opposite is true of polygamy. The actual practice of plural marriage, at least here in Canada, is Mormon fundamentalist polygamy with all the abuse that that practice entails. I don't think there are very many, if any, other social groups that want to exercise a right to plural marriage. If we end up with a constitutionally protected right to plural marriage, we would be protecting precisely the behaviour that we want to discourage.
What unmitigated bull-feces.
My god. First we had the whole "gay marriage will destroy society" thing. To justify it, they singled out homosexuals who engaged in particularly undesirable activities -- pedophilia, unsafe sex in bathroom stalls, etc. -- and depicted this as somehow being the 'norm', or the inevitable result, or that it would "protect precisely the behavior that we want to discourage".
Fact. Much of the abuse in Bountiful has nothing to do with polygamy itself. The abuse lays in forcing young girls into arranged marriages in which they are sexually abused. It would be
no less repulsive or immoral to do this if those arranged marriages were monogamous. Similarly, the strict religious control that their religious leaders exert over the community has nothing to do with polygamy; as is evidenced by the numerous cults that exercise the same (or even greater) control, within a monogamous context.
There
should be laws (and those laws should be enforced regardless of 'religious beliefs') regarding forcing anyone (particularly minors) into arranged marriages (regardless of whether they are monogamous or polygamous). There
should be laws that grant women equal rights within a marriage with men (regardless of whether they are monogamous or polygamous).
Saying that we'd allow polygamous marriages between consenting adults under a clearly established legal framework that grants equal rights to everyone in the relationship would in
no shape, manner, or form vindicate, promote, or protect the kinds of abuses that take place in Bountiful. No more than allowing gay marriage in any manner, shape, or form vindicates, promotes, or protects pedophilia.
Personally, I can't see myself getting into a polygamous relationship. But if there are people who do...I say more power to them. And I say that those people should have
the same protections under the law that any other such relationships have. That includes legal right to share property (and to be compensated proportionately in the case of divorce). That includes the right to be considered a family member, and have the right to visit them in the hospital as a family member, inherit property as a family member, etc.