#polyamory

In the 'western cultures' and really most non-Islamic cultures, it's seen as wrong but why?

If they are happy, satisfied and all of that what's the matter? It doesn't matter what you answer, I will make it work out. I admit I haven't exactly yet but trust me things are under way, I will have a wife legitimately (getting one is straightforward with decent EQ towards women developed and honing in the right type for me, in fact it may already have happened, I am not disclosing that and yes she does/would know I am poly and while we 'fall in love' I do/would/did tone down any seeking elsewhere for a few weeks at least) and a girlfriend that to the other 2 of us is a wife but for legal reasons I cannot do that.

I will admit that I don't fancy them fucking and being with other men in that way but I'm not gonna set a 'no male friends' nonsense barrier. Within reason they can even flirt with other guys if that's their nature, what I ask to you is why is this immoral?

You can say 'omg you're taking too many for yourself'. So you'd rather them unfulfilled and in an unhappy marriage just to avoid being single? I just don't get it.

Why is polyamory of a consensual kind, no cheating, all in on it, all regularly communicating and fulfilled looked down upon?