Purans and Vedas are OUR scriptures, they contain info about OUR ancestors, OUR kings,OUR rishis,OUR kingdoms. They are written on OUR land, by OUR ancestors in OUR own Sanskrit language. So it is OUR duty to see to it that at least we try to analyze the historical part of these scriptures.
These days are dark and shadowed. Our own religion and scriptures are undergoing a turbulent phase. But as Mundok Upanishad states it, Satyameva Jayate, Truth will always triumph. One day surely will come when our true history will reveal itself.