You think whatever you want to think about S India. I hardly identify myself with any group these days. For Northies I am a S Indian and outside their group. For self-proclaimed intellectual Southies, I am supposed to have come from the North to "Aryanize" them, so I am outside that group too. :-)
PS: To be frank, India is surely gaining a lot of population from Northies. :-) Don't get outraged. Take it with a sense of humor, if you have any.