Well how well do you think someone is doing at being monogamous if they're ogling someone other than their partner? I'm just saying there's some people that just aren't into going the full mile with a relationship and would rather think a strong friendship fares better than trying to smother one another with affections.
You have a pretty strange perception of what monogamy is like, if you think it's people wearing blinders, refusing to even look at other people, and "smothering one another with affections". That's not even Hollywood, that's Hallmark Channel crap; and it'd be exhausting, constantly showering your partner with affection while constantly worrying they're going to leave you because they find someone on TV attractive. You and I have crossed swords about this before, and I have no intention of making this an argument. I think your strong friendships/FWB concepts are just as valid. I don't think monogamy is better for anyone but me. My wife and I probably wouldn't be monogamous if we weren't with each other.