Northeast Indians hate each other more than anyone else. Which is why a pro-India and patriotic stance needs to be popular. Just look at recent events.
When disaster happens, people aid each other regardless of background. Maybe people pushing Khilonjia politics need to get that right.
Look at the internal ethnic tensions within Assam: the multiple communities and tribes. One difference in language or land causes violence like fire. Or the recent border clashes in Assam-Arunachal Border.
Imagine living in a place where people of the same country battle one another over border issues.
Living in India is the only thing which unites all these factions. Without India, they would all hate each other tenfold and reduce each other to shreds.
One little ethnic spillover, some tribes being here or there, and a single incident is enough to start communal violence far worse than anything in North or South India.
Jai Bharat, let us all be united.