Are there differences between genders? Sure. It's an open question how much of the differences are due to direct biological causes and how much are due to soc

Are there differences between genders? Sure. It's an open question how much of the differences are due to direct biological causes and how much are due to societal norms (I find the parallel between open source software and indigenous gift cultures to be quite interesting, for example), but there are certainly differences. As such, I would oppose any attempts to establish quotas or even aspirational targets for diversity; as you say, forced diversity has negative consequences -- not just for the organization, but also for the individuals involved. But as much as we shouldn't be trying to bring in individuals who aren't really interested, we need to make sure we're not keeping out individuals who are interested... in a sense, it's more important to look diverse than it is to be diverse.