The main problem is that Congress is Anti Hindu. They never have any respect for Hindus, always try to appease Muslims, Christians and try to divide Hindus. They never say a word against the Hindus conversion to Christianity.
Congress & other political parties always treat BJP as untouchable etc... In this scenario how can we expect BJP to bend down against Congress. Even if BJP wants to talk to Congress whom should they talk, Sonia? She is not going to understand the BJP, Nationalism & Hinduism.