Contrary to the wide academic conflation of caste and Hinduism, the practice of caste-based discrimination is in contradiction to the Hindu teaching that each individual is equally divine and has the potential to realize God based on his effort.
Put aside the crazy "Obama's a Muslim" idiocy -- assume John McCain had won the presidency instead. Do you really think the Senate would confirm a Muslim candidate right now, even a conservative right-wing one? I don't.
My aim isn't to butcher the Ramayana but simply to share it with people in a casual and entertaining way. If I've done my job right, Ramayana: Divine Loophole serves as an intro to a much fuller version of the story.