Swinging and swapping partners

[Kurioxan]

The suggestion of it alone would end any relationship and make me seriously question my own ability to judge the decency of others as I would have entered into a relationship with a very indecent person.

Indecent people? No they arent, at all, they are from your point of view and your morality, but your morality you use it to your own life, not to judge others, your opinion... not their reality.
I could say that anyone who puts milk in their tea is indecent, shall i stop viewing them as human beings deserving respect? noooo.

I don't agree that it's perfectly harmless because I believe it shows dissatisfaction in the relationship and lack of commitment to be sleeping with a bunch of other people. If you can give reasons why it's MORE committed to have sex with lots of other people besides your partner, I'll listen.

No, it doesnt, swinging has nothing to do with dissatisfaction in the relationship, sex does not make a relationship, in fact sex is accessory to a relationship and sexual preference has nothing to do with being with the person you love and want to spend the rest of your days with, they are different things.
Not everyone thinks that having sex with only the same person is the answer to a healthy relationship, and to those people being forced into an unhappy bondage, there are a LOT of people who are dissatisfied with their sex lives they are so because they love the person and want to respect their feelings so they dont. How long do you think that will last until there is ressentment? 10, 20 years? then cheating.
Having an outlet, improves the relationship to those people.
Meaning you can commit fully to the person, as there is no fear, fear holds back a lot of people who stay a bit away from the other person out of not wanting to get hurt, so yeah, having such trust makes it better (for those individuals)

I'm not sure what dictates what is or isn't a normal couple but I think we can both agree most people wouldn't consider swinging as something that's expected of a committed relationship. Saying you're preventing cheating by allowing sex with other partners really twists the definition of what is and isn't cheating. So what, they can have sex with people their partner knows about but not partners they don't? It seems a little silly because they are still having sex with people who aren't their partners.

What is "expected" is meaningless, people have to think for themselves and decide what is best for themselves, not what other people may think.
All of those are human constructs that dont apply to all humans.
And there is a world of difference between cheating and having sex with consent of your parnter (whom likely has sex her/himself) it is arguable that they have fuller sex lives than those who dont, simply cause they can do all their kinks and hidden desires without fear of judgment or losing the other person, again contributes for a healthier relationship.

I'm not saying they can't do it, all I said is I won't. As I mentioned, I have loads of successful, happy marriages to look to and none of them included having casual sex with other people. I'm going to follow their lead instead of random Internet opinions.

Again, im glad it worked with those people, it doesnt with all.
And have you asked them if they do any of it? a lot of stuff happens with your friends/family that you dont know, maybe half of them are swingers lol.

I wish you a happy life as well, but what beliefs? You think my aversion to swinging is religious? I'm not religious in any way shape or form. I won't ever be with a woman who wants to do this sort of thing because I've seen that relationships are stronger with commitment. I obviously can't speak for the entire world as if there's not exceptions, but commitment breeds intimacy, and intimacy breeds satisfaction. Your whole paragraph sounds kind of condescending to me, as if I haven't given it any thought and that one day I'll find out that "REAL love" includes swinging.

All I said in my original post was that it's not for me, that the examples I grew up with are extremely successful, and if it isn't broken don't try to fix it.

eeeeek! im very sorry that it sounded condescending, it is not at all. Nor am i trying to "force' you into changing your morals, simply to not judge and understand that yes, it works just as fine to people who think that way.
I wish that you never face such situations as you clearly oppose it, but if you do please think of your and your partners happiness before of your own morality.
What feels more like unconditional love to you? to love the person so much that you accept that, or to deny yourself and the person a relationship that could by all means be awesome because you refuse to be with someone like that?
Again, this is not condescending, i am not a swinger and my personal preference is extreme faithfulness, hell i wont even dance with anyone aside from my girlfriend, but if she wanted something like that i wouldnt oppose it, i love her and i know that i cant push my morals into her.

Intimacy doesnt necessarily come from sex, there are plenty of other things and sex doesnt have to be intimate at all, look at porn movies, does any of that look intimate at all to you?
You can still have your sexual intimacy and then have wild sex with other people who isnt intimate at all, not to mention there are other ways for intimacy as said.

Anyway sorry long wall of text

Edit:
This is highly relevant:

http://www.smbc-comics.com/