Humans are actually somewhat unusual amongst great apes in that the males typically DO commit at least for a while. If we look at our closest evolutionary cousins, females often trade sexual favours for male indifference. For example the right to forage on his territory.
He won't help but he won't run her off either. Humans are unique in that a mated pair will usually last 3-4 years, long enough to have a child and raise it beyond infancy. By 4 they are walking and talking and don't require quite as much attention as new borns.
After that point, both would look for another partner. That's the evolutionary strategy of our species. Sure a man could just have sex with as many women as possible, but that's dangerous for the man.
In species were one male rules the roost, such as elephant seals where a single male will often guard a harem of up to 50 females, territorial fights are often to the death. As few as 4% of males EVER mate at all. Humans are also unusual in that we have an extremely long development.
Sticking with our seal comparison, they will be left to fend for themselves by 6 months old, where as humans need about 20 years. So if we imagine a human male with a harem of 50 females, and if he manages to not die defending it, he fathers 50 children with them. With a maturation rate as slow as humans, he would be lucky if 1 of the children survived to adulthood.
By sticking around for a few years, he gives his genes the best possible start in life. Having 2 parents allows for the long maturation of our species and thus means that, in a life time, a male might father half a dozen children and have 3 or 4 reach adulthood.
Personally do not agree, most guys I know are monogamous. The ones that say they are meant to spread their seed, usually say this when they are not ready to settle down with one woman. Had some friends that played around, but when they meant a special person, they changed their view, and said that they felt empty when just playing around.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.