I would suggest holding off summary conclusions. Things are turning out to be very, very complicated.
Science is always open to revision, but what I presented is the current prevailing view from evolutionary psychology based on a massive body of scientific research. I didn't say that females are naturally monogamous, just decidedly more selective. Scientists continue to debate the details of mating strategies, but the notion that males are naturally less selective than females when looking for short-term mates is not a controversial position.