Interesting comment about it sometimes being possible to choose. Personally I don't feel I have any choice. But perhaps it is possible to take a side and live mostly on that side or just live on the side you have been asigned. I do know some androgynes are comfortable enough in their assigned gender roles and expression that it is not worth the effort and hastle of going against the grain of society. Unfortunately I don't seem to be one of those, the need is too strong.
For me the the slogan says - It is not good for an androgyne being required to choose a side. I would agree with that. Perhaps deeper than this is choosing a side is denying a big part of yourself.