I am aware that saying something has less impact than something else isn't saying that it has no impact. But what I was saying is that she says that it is not true that environmental factors have more impact than biological ones, and I am wondering what facts and research back this up? How does she know this simply isn't true? Where is the evidence? Maybe there is evidence and she did not present it. But that is the point. She did not present it. 
In regards to the other part- I understood her argument. And what I was saying is that the gender gap in physics, math, chemistry, biology and engineering has decreased since the 1970s. In computer science the gender gap has increased since the 1980s when it peaked at 37% women. So why is it that more women prefer to choose math and physics with increased gender equity but not Computer Science? Computer programming has the greatest pay disparity of any job between men and women in the US. Maybe that is why. Or the sexual harassment.