If female lawyers choose to work in the public sector rather than the private sector and if the reason they choose to do so is because they feel less of a need to earn money and therefore can pick jobs they like better, is that sexism? Sexism against men? And who should be changing it and how? If women care less about money (perhaps because society does not value them based on their earning power, perhaps because they don't have to support a family)- is it wrong to pay them less?
Obviously, that's not the only possible reason. There could be real sexism. It could also be a question of the insanely long hours. And again- is it sexist if women prefer not to work insane hours? Is it only sexist if they do so because they feel obliged to raise a family?
In other words, I do not think I get a word of what this professor is spouting.
Edit: Do you ever sit in class and listen to people asking questions and think to yourself: "How on earth could you think that's a real question? For your sake, my friend, I hope that is a thought that popped into your head and your hand went up before you finished the thought because if you actually thought about that thought for more than five seconds, I simply don't understand what it must be like in your head." Not questions of failing to understand the professor, but questions of ah-ha! I have thought of something clever and you're just like oh honey. oh no. For example: Can something be disparate treatment and disparate impact at the same time for different groups? Yes, honey. It can. Good question.