Confused ideology

BJP used to be a party with a difference. A party of leaders with clean image, strong national views and learned. Leaders like Atal Bihari Vajpayee, L. K. Advani, M. M. Joshi talked sense that could strike chord with the educated and frustrated lot. Eventually they could get their hand on top job. Their performance was marginally better in comparison to their predecessors. They had all bright next rung leaders as in Arun Jaitly, Sushma Swaraj, Pramod Mahajan and at times it felt this party is going to stay on top for quite some time.
But, somewhere along the line they seem to have lost their focus. It became evident with their defeat in 2004 elections. Since then they never seemed to be on the recovery path. Apart from their forte Gujarat and couple of other places, BJP has lost a lot of ground. Now they seem complete directionless. Every now and then they would make sensational comment about radical Hinduism and end up clarifying it rest of the time. At some point, they were people with ideology but now they seem to be confused. The latest example being all turmoil occurred with Jaswant Singh's book. The book claims to be a work of research. It does not hypothesize or postulate anything, it claims to be based on facts. I am not vouching for his book nor do I share same views on him but I definitely do not consider it anti-national or for that matter proponent of any ideology. BJP seems to have different thinking. They claim their heroes and ideology is betrayed by this. I fail to understand when the book does not propose any ideology how come it betrays other and the heroes it downs are the ones who banned BJP's mother organization (RSS). After spending decades in party, shaping its policies and thinking; the treatment mooted out to Jaswant Singh does not seem to be right. In a way it seems stupid of party to do such a thing. The top leaders are shying away from taking responsibility of ousting Singh, it just does not seem to be a wise decision.
Party has continuously lost ground among masses, there is hardly any star leader to take guard at top after L K Advani. This is a time when they should unite themselves and resurrect the party because country not only needs a stable government but also a united and firm opposition which can only lead their way back to top.