Its obvious that Karunanidhi felt hate coming from some section of the upper castes during his lifetime. In return, he hates the Hindu religion and all aspects of it including Ram. On the other hand, he openly panders to the muslim community and would probably consider a rabble-rousing desert nomad who committed hundreds of atrocities in his lifetime as a person more worthy of respect. He's not a typical atheist who is dispassionate in his rejection of religions. Having said that, Karunanidhi is just giving out his point of view and VHP members may find this offensive, but there is nothing like a fatwa.