Yea... going to post about how many guys I know that were crushed by divorce.
These are weak men who don't understand how women and attraction work.
1) Monogamy is rare in the animal kingdom
Yep. this is extremely important to recognize. I went to a club with my gf of 1.6 years last night. I dirty danced with a girl, she dirty danced with a guy, while we were right next to each other, watching each other. It was hot. I set her free whenever I can, and she does the same for me.
You have to be secure, though.
2) I have impulses which I never chose to have (as I'm sure others do) to have sex with at least 5 different women every day
I think that's natural for when you're not getting laid regularly.
3) We can ejaculate how many times a day? And what exactly is stopping us from having sex all day long with different women? I don't see the barrier there.
Work? Paying a mortgage?
5) If we were MEANT to be with 1 person ONLY, then it would be CLEAR.
The only thing that is "meant to be" is either a man evolves in all aspects of his life and has women at his side he's attracted to, or he doesn't improve and he jerks off a lot and watches TV.
Marriage doesn't make sense, unless you choose to do it and are happy that way.
Everything is an organic process. If it feels right, do it.