Well,When we say NE(as in nagas,tanis) , we by default in many ways exclude Assam as it is seen as Indian than NE.We usually refer to the 6 states of NE except Assam and sikkim(Nepal- like) and to a lesser extent tripura.Well, I just saw an Assamese guy contradict you, or say disagree with you. So, question,"What makes you think you can speak for entire NE in general ?"
Also, let us say, I agree with you, yes, you and people like you are different from rest of India. But then again, considering, the states of India have been more or less created on the basis of linguistic/cultural lines, people from each and every state of India are different. So you are not saying something extraordinary or unusual there. If that is not the case, then what makes you special ?
The population of what we mean by NE is about 6 mill.