The anthropologist in me wants to agree that monogamy is not biologically natural for men.
The philosopher in me wants to disagree; that a higher degree of intelligence and contemplation of our own nature puts running around down to giving in to base desires.
As a man of a homosexual nature, I feel a strong impulse to sleep with whomever; to whit, I am attracted to men, who share the same impulses as I. However...I am opposed to grievous skankage, and deem self control one of my prime virtues.
Therefore, I disagree with the OP.