Just because Hinduism is "native" to India doesn't mean a native should be following it. Those who follow a faith follow it because they believe it to be the truth. I am proud of my culture and ethnicity, it does not mean i should be proud of the religions that spawns as a culture progresses. I am not addressing you specifically but the saffron parties in general. They have no right to demand those of different faiths to "return" to hinduism just because it is what our "ancestors" followed. I don't understand this argument.
Anyway, my own ancestors as far as my family tree goes, (we have a written record from 18- something) have all been Christians. Even if they weren't, i couldn't care any less.
Odd that you somehow believe one should be critical of even "traditional" values and yet blindly follow Christianity? You are right, one can do whatever the hell they want. It's a free country afterall. But I always found being informed more important that being "closer" to some mythical God. And yeh, Hinduism is equally lame.