I'm not saying that women are purer souls than men. The fact that you have chosen to spin my statement that way indicates that you still haven't grasped the issues that get many of us exercised about this.
I grasp what you are saying, I just think you are missing an important part of the picture. And it is absolutely about a sense that women cannot be as mercenary as men.
Yes, all kinds of women are caught up in a system in Hollywood where there are pressures and expectations that are unhealthy and unfair. This is not only caused however by men who demand sex for roles. If it were universally the case that no women were willing to make that exchange, it wouldn't get very far, no women would be in films? Not a likely outcome.
But it does not take that many who are willing to create a system where you either do it, or it makes things harder for you. In a small industry, highly competitive, where large numbers of newcomers are desperate to succeed, there are always new people who will go farther, who have more ambition.
That is not just men throwing women under the bus. It is people of both sexes who want what they want, whatever it means to anyone else, creating a transactional market that affects everyone.
The only way to ignore that some women are not only complicit but happy with this system, prop it up and participate in creating it because it gives them an advantage, is to believe some fiction that women do not have those kinds of behaviours.