Hindus were 80% once upon a time. Today they might be less than 70% due to rampant conversions and illegal immigration. Moreover many mention themselves as Hindus even after converting to another religion to retain reservation benefits.
Moreover, some Hindus hate or don't respect their own culture and hence don't support the "Hindutva" political parties.
Yes, Muslims and Christians enjoy more rights and favoritism by the system, be it media, judiciary or even political parties due to constitution being tilted in favor of minorities. They are also good vote banks for politicians so every party tries to woo them. That's why I think despite a so called "Hindutva" party in power, Hindus are and will remain at a disadvantage.
The stone pelting incidents that have happened exclusively in Hindu festivals this year is enough to show that Hindus can't even celebrate their festivals in their own home country. The attacks of them have also happened in UK and Canada recently. Have you seen any international media covering that? Other religions get such coverage and also support from within and outside their country. Hindus don't, neither in Pakistan, Afghanistan, Bangladesh, nor in India, UK and Canada. Muslims and Christians have many countries across the world that are run based on their religious values and so they can feel safe there. Hindus don't have a Hindu country to go to or feel safe in.
Please correct me if I'm wrong.