I'll answer the question for you - our choices emerge from the preferences we develop as a consequence of the particular society that we encounter. If particular social groups are encouraged to develop a specific set of values or ideals, to what extent can we say that they have"freely chosen" to behave in a certain way?
I think Shane is making a good point here. It is in my opinion quite straight forward and uncontroversial to guarantee equality of choice/opportunity. However getting into the choices being made is extremely problematic.
I don't think that you can avoid the argument that the Phillips perspective is an ivory tower one which essentially holds that people are making the
wrong choice and that they should be somehow socially engineered into making the right one.
While choices may indeed be informed by a social construct of some sort I find it absurd to think that it is possible or desirable for someone to judge that choice and propose it be engineered to reach a different outcome. Central planning doesn't work for the economy why would it work for society??
Which of course is not to say that women should not be encouraged to enter politics/etc but rather that this encouragement should not be regulation and should not be from the government. If Anne Phillips wants to stand on a soapbox and implore women to enter politics then kudos to her, if she wants the Government to mandate quotas and engage in marketing campaigns then I reject that completely.
(sorry to interrupt the flirting)