I stand with the argument that women do not marry cuckolds. It is a sweeping statement, but hear me out. If you, at the start of dating/meeting, tell a woman about this kink, I believe (could be wrong) 9 out of 10 woman will back off.
Cuckolding obviously exists, but woman do not marry for cuckolding or any other extreme kinks.
Just like cheating exists. And cheaters are many times forgiven. But if you say that women or men marry cheaters - it is wrong. I am certain, even in most liberal/wild spaces, if I say to a girl that I cheat or I have tendency to admire/pursue other women, I won't even get a second date - leave alone marriage.