That is interesting. I wonder exactly how many swingers you have met? Outside of the folks we swing with, and of course you fine people who do not actually know me here on the internet, there are maybe 3 people that even know that we are swingers. There is a club in Atlanta that we go to to meet like minded folks. While we are very particular with the small group that we actually interact with, there are literally hundreds of folks that we have met up there and become 'normal' friends with.
Out of the folks we have met, maybe on or two have seemed like they fit into your very generalized description above. Firstly, most 'modern swingers' are fully aware of the risk of STD's and take neccesarry precautions....this is not the 70's swinger crowd. Most of the folks that we know are extremely well off financially, and are certainly not depressed, anxious, or full of performance issues.
There is no depression or anxiety...everything is out in the open. 'Traditional' marriages are more likely to breed depression and anxiety. When I see a beautiful woman in the mall, I look at my wife and say "Wow....I'd do her in a hear beat!". I don't feel the need to avert my eyes and pretend I did not see her. Likewise, my wife does not have to wonder what I am doing behind her back.....there is NO jealousy in our marriage, nor the marriages of 99% of the folks we know from 'up there'.
I do not see where inbreeding would be more of a problem....What about with the current divorce rate?? about 1 out of every 2 marriages end in divorce. Then there are usually more than one marriage after that. That is where inbreeding could really be an issue. Atleast with polygamy, you know who all of your brothers and sisters are!
Again, I must ask....how many people have approached you and said "Hi, I'm Jim and thiis my wife Jane...We're swingers!! Nice to meet you...." I doubt you have had the wxperience with swingers that you would like to portray. I believe it is more likely that you added that statement to try to lend credence to your statements. It would be much better to just state that you think it might be that way...Again, I can't think of but a coupl of people that we've met that are even slightly moody, much less insecure.