/sci/ - Science & Math

I have spent the last few months reading about sexual selection, and there is something that doesn't add up.
From the evolutionary standpoint, I don't see how monogamy was selected for males.

Polygamy makes sense for females
>Creates confusion as to who fathers your child, lowers chance of rogue males killing your offspring due to this confusion, lower ranking males will often protect you in exchange for sex outside of estrus, and during estrus they can just mate with the high ranking males for reproduction. Some species go with this.

Monogamy makes sense for females
>Creates a strong pair bond of a male that will protect the female and the offspring in a best case scenario, provide food, etc etc. Some species go with this. Also goes well with the selection algorithm of finding the "best" male.

Polygamy makes sense for males
>Basic male selection algorithm. Impregnate as many as possible, hope some of the offspring makes it, hope some lower ranking male will take care of it. You have basically infinite gametes to spread around anyway.

Monogamy makes no sense for males. I can't find an evolutionary reason to support it. Yet it became the prevalent thing for human males to desire. You see so many talking about finding a life long pair bonding partner. Why did this happen? How was this selected when there is no advantage to it? What made males start choosing this unrewarding strategy to them?