This is the core of the issue, not territory, not people, but the foundations of our states in south Asia. Accepting majority rule and the victimisation of minorities simply because they are minorities is completely inimical to the idea of India, and will only create a patchwork of majority community state-lets.
You have exterminated your minorities everywhere, in West Pakistan as it was, before and after 1971, in East Pakistan before 1971, without any obstruction. On the other hand, our minorities have grown from strength to strength. That itself shows why you shouldn't be left free to do what pleases you especially to do what pleases you when there is a minority present.