Board Thread:General Discussion/@comment-6696512-20130719010826/@comment-7472785-20130721044430

The protesters, and in principle the song in the black trailer, refer to not being treated LIKE animals - that doesn't make them animals.

And the only other reference to Blake being wholly or partly non-human is 'Black the beast' - as quite some humans have been called (a) beast, this could be allegoric also.