@berlioz
I have a little bit of second hand experience with polygamy. I live in Utah, a state pretty much ruled by the LDS church. There's an offshoot of the mainstream LDS church, called the FLDS church. The F stands for fundamentalist, because these people kept the custom of polygamy that was rooted in the original church. Modern LDS people, or Mormons, don't practice polygamy, and they've removed it from their doctrine.
The FLDS communities usually stay in tight knit farms or entire towns, and they aren't kind to outsiders. Polygamy is a minor infraction in this state. That's not really what FLDS people are worried about. They keep such tight knit, secretive communities because, often, 40 year old men are marrying
16 year old girls. It's technically a legal marriage, with the parent's consent, but what about the 16 year old? What about the 15 year old, the 17, 18, and even 14 year old? They don't really have any say. Their fathers give them a few grown men to choose from, and they have to marry one of them. They're forced to marry. Often, they're marrying a middle aged man who already has 7 wives and 35 kids. These people can't provide for their families.
My teacher used to teach a child of polygamy. These kids are tiny. The families simply don't have enough money to feed their kids. They don't have the time to spend with their wives and kids. There are a few polygamist families on the outskirts of my town. Their houses are as big as they can afford, for so many people. From the outside, it doesn't look sanitary. I'm not attacking them personally for not being able to clean up and feed their kids, I'm sure they're trying their best. But it's obvious their life style is not healthy or practical. It's a breeding ground for abuse, neglect, financial struggles, and starvation
. I have a lot of problems with the FLDS church, it's obvious. But they use polygamy as the main tool to maintain their power. They weaken families so they rely on the church. They stay in their communities. They obey the leaders, because they have nowhere else to go- not with so many kids, not with so many wives.
I personally think it's immoral, but beyond that, there's nothing good I can pick out, objectively. I'm a strong believer in the first amendment, so these people have a right to practice their religion. I don't want to take that away from them. But for God's sake, there are whole organizations devoted to sneaking people put of polygamous cults and families. People are being hurt, abused traumatized, and it all ties back to polygamy. Hell, there's a whole TV show about it. Something has to be done, without infringing on their freedom of religion. It's tricky to figure out what.
When it comes to polyamory, I also personally find it to be immoral. I agree with Emi, it's dysfunctional. It's impractical. I don't think people have the capability to love more than one person in a healthy, devoted, romantic/sexual relationship. I think it'll only result in pain, to all people involved. If it's consenting and legal, there's nothing I can do about it. It's if my personal opinion that it's wrong, but that doesnt mean I'll go tell a polyamorous person how to live their life. That's their business.