I have been involved in the hiring process at more than one tech company and it was apparent that there were far, far fewer women in the pipeline than men. Even if we hired every single person who applied the balance would still lean very heavily toward men. Again, this is just in my personal experience.
I don't believe it is the job tech companies to do extra work to hire more of any underrepresented group in the industry until the problem in the pipeline is addressed.
I think the argument that there is something biological about women that makes them less interested in tech comes from what amounts to pseudoscience at best and that argument shouldn't be validated because it gets in the way of solving the problem with the pipeline.
I have never (and would never) advocated for any group of people to be given "extra marks to pass" in a situation where their ability to do a job is important.
I don't think the author of that memo at Google should have been fired. Though I do understand how from a corporate standpoint they felt that they had to.
I'm not sure what point you're trying to make with the "person interested in equal opportunity would not do..." I didn't do those things. I'm not blind to anything and I think all I did in my comment was ask a pretty simple question that you didn't even attempt to answer.