Why are Dalits condemned to be sewer divers

I watch this channel sometimes. It's the weirdest fricking thing and I've never been able to figure it out.

They have extremely high quality, first hand footage of surreal scenes and interviews from some of the most dangerous places in the world. This is a huge investment.

At the same time, they have narration that is riddled with vague statements that don't make any sense, things that are clearly factually incorrect, and other bizarre errors at random. The narration feels AI generated but then, how did they get the footage and interviews? Fricking weird channel.