BJP can never come to power in West Bengal because of this large chunk of Hindu Bengali of the state who hates Dr. Shyama Prasad Mookerjee and BJP for no good reason and feel attached with Muslims of Bangladesh.
The subtle sermonizing on our festivals was not enough, that now the backdrop of our festivals has again become an opportunity for some to divide us on linguistic fault lines.
Prima Facie, it would look like any regional linguistic movement, like Shiv Sena's Marathi Maanoos (Person) and Marathi Asmita (Pride) movement, or Tamizh Pride that Dravidian Parties project. But if we scratch the surface we will observe that it is a very smartly devised separatist movement under the guise of linguistic regionalistic sub-nationalism.