Let's set aside the usual "unicorn" bashing.
roys101, you probably haven't thought this whole thing through. Walk with me through a few considerations.
Imagine being single. As in just you, living by yourself, otherwise right where you are this moment, locationally & situationally.
How would YOU go about finding a life-partner?
Me, the first thing I would NOT do is decide "I'm gonna go find me a wife on Craigslist!! Betcha I can get 'em to reduce the price, too!!"
How did you meet your wife?
How long did you know each other before you became interested in each other?
How long did you court before you got engaged?
How long were you engaged before you got married?
There's ZERO reason to believe that you are going to find a "life partner" in LESS time at each of those stages!!
How many women other than your current spouse have you ever been at least mildly interested in? When you were "open to possibilities," you weren't as picky -- let's face it, chances are high that your wife was simply
tolerable (& you for her) & you talked yourself into everything subsequent. Anyway, take the number of dates you've had, halve it -- that is the
absolute minimum number of available women you're likely to have to date before finding someone who might live up to your standards.
Okay, so let's pretend that you find a magical online site where there's all sorts of women running free.
Does she need to be bisexual? slim? pretty? in top health? younger than you? Write down a list of such "deal breakers," then accept that each item will on average chop the field in half.
How do you react if she has two toddlers? five cats? an asthmatic Rottweiler? ten parrots? her own house? All these things kinda shout that she has a life of her own & doesn't need you to rescue her.
What happens if she falls for one of you, & finds the other tolerable?
What happens if you meet your ideal woman & she's rarin' to go... but has no interest in moving in?
Or you get one who moves in, but a year down the road you or your wife "just don't feel the love anymore"? Who gets booted out of the house? or do you just trade her in on a new one?
How many stumbles & false starts & misunderstandings have you had at each stage? Have you ever reached the point of almost breaking off the relationship entirely? Okay, now take each of those little glitches, &
quadruple their occurrence, because you're going to have FOUR relationships -- A + B, A + C, B + C, A + B + C.
That last one is important, because if (say) A + C are having a tiff, B might get disgusted with BOTH of 'em & walk out. If your aim is "conatnt togetherness," then there's not much room left for being an individual.
In fact, because of the way most of us are enculturated, we cannot even IMAGINE being a solo individual once we have encoupled & stepped together onto the "relationship escalator" that ends in death. That's why some people remain married a half-century past the point they discover deep mutual loathing, actual nauseous disgust.
That's only a short list, & mostly focused on prenuptials, but you get the idea.