The Tower of Babl Story

The hebrew bible didn't take its final form until the period during an end just after the babylonian exile of the sixth century. The entire leadership class of the remaining jewish community was shuffled off to live in babylon. They were threatened with death, and often were killed for worshipping the gods of their neighbors or taking up foreign customs. Their primary function was to serve kind of as a secret dakota ring that would tell who is us and who is them?