Do you think there have been situations in which polyamory happened naturally? Like, three people meeting each other and all being interested in one another and eventually deciding to form a relationship? Instead of like, a couple seeking out a third person??
Absolutely I think that has happened! In fact, I know that it has happened - I have seen it happen in my own life (not to me, but to other people) and I have gotten plenty of letters here about that.
Please note that “three people all being interested in each other” is not a synonym for polyamory - that is called a triad, or polyfidelity, and is only one way of being poly. But yes, people have definitely found themselves in situations like that organically.