> I disagree with that completely, like honestly people that prefer monogamy generally do so because they are either afraid to be alone, because it was what they were brought up on, just don't want to deal with being rejected a bunch before hooking up that night, or they are romantics.

That's a bitter remark. I think there's a lot to be said for having a life partner by the age of 30 (there are movie tropes about this), generally from a psychological and sociological point of view. If you don't look early, you decrease your chances of having it by the time it gets really hard to find mates at 35+ Pursuing a monogamous relationship necessarily requires you to be a functioning adult, capable of engaging in a negotiated relationship. How well you tolerate and negotiate, is the primary method by which both members determine the value of the relationship. This is unappealing to people who are psychologically undeveloped, damaged (insert millennial infantilism joke here) or simply have a personality that is incompatible with such a relationship...which can often be traced to a problematic upbringing. I'm just repeating part of what you've said with a different interpretation, but the general statement was just grating.