Although discrimination breeds many perils, there are instances where selective inclusion becomes not only acceptable, but desirable. I see it not as a permanent fixture, but as a means to address the injustices created by social inequalities.
Where identity expression is suppressed by coercion, not only are individual gifts diminished, but the collective loss of confidence creates groups ripe for the ravages of bigotry. Allowing self exploration and freedom of expression unfettered by the constraints of fear can be a vital tool towards healing and self reconstruction.
There are, however, difficulties made manifest due to previous exploitation; a lack of trust and reluctance to extend acceptance towards those whose differences are misunderstood.
I would argue that abiding by the wishes of such a group can be accomplished without becoming ensnared in the exclusionary viewpoints they espouse.