Yes he is saying the truth although the way he says it is not appealing. We were taught about the spread of abrahamic religions and roots of some beliefs during the Bsc for some reason and it was the first time we started seeing things from a different perspective. All of the religions were invented as a political campaign more or less and they were created to unite commoners under one banner coz not everybody loved their Monarchies and most of the people were unruly. Any religion that says 'if you don't do these as we say then bad things will happen to you or disbelievers are a lost cause' has the same political agenda in them. Like it or not Jaina, Buddhism and Monotheistic religions all were casted in the same way. Overly religious people will always find these oppressive and they were the target audience anyway.