You are quite an oaf, ain't you ? Cant think beyond the conditioning you have received in childhood about 'HINDU' 'MUSLIM' 'CHRISTIAN'...
If it can penetrate your thick skull, let me hopefully try to make you understand that Indians in general (and South Indians in particular) tend to identify more with their linguistic group than their religious group. For eg., a malayali nair would rather identify himself with a malayali christian than with a telugu hindu or a malayali christian would be more comfortable with a malayali hindu than with a goan christian. This is a basic truth for most people and there is little use in you being ignorant about it or trying to pretend that such a state of affairs does not exist.
If north India lags by light years in almost every criteria of human development (and I am not saying that the south has become fully developed in this regard, only that the north is far, far worse), part of the reason is that it's commoner idiots are easily fooled by vested interests into thinking that the dumbed down version of 'religion' and 'religious identity' that they offer the former are what they should deify as the ideal and the commoner's woefully shrivelled up brain that will not allow them to see anything beyond.
One fine testimony to whatever I have said above is the nature of your question referring to my religious identity. I had written about the giant gap existing between China and India and all you could remember was my Christian name !!!