I think the previous question was about the institution. In this case, Facebook has people of all genders, not just one.

It only be an apt analogy to the Universities if Facebook were some single-gender social network. Or if an all-gender University let you only recruit one gender.

The devil probably has enough advocates at this point and doesn't need your contribution.

But in general, there are classes of ads that you just can't target based on certain classes, period. Even if you hypothetically might have the ability to target a counterbalancing ad somewhere else. Facebook repeatedly has been in hot water over this, and both they and the people using their ad platform to do this stuff need to get more than a slap on the wrist, in order to deter others from trying the same in the future.

Well if Facebook wasn't a large portion of the online advertising market then there might be an argument. When you try to become a monopoly you get extra responsibilities as you gain market share