Lately, I've been feeling very sympathetic towards just such a view on identity. Given the human society's inherent unpleasant tendencies, some way of peacefully enforcing universal freedom of identity and tolerance of it would really turn things around. Ah, wouldn't it be nice if e.g. depressive alcoholic white males could just form a Gay Dwarf Fortress and live in a community that suited them perfectly, instead of harming themselves and others within the present society's narrow confines? :D

But seriously, I like this idea.