I really dont know much about your literature, but your comment about headweight is just so true. I dont know if it is because of your literature but IMO doesn't a good literary background teach politeness and universal love towards all people ??? If at all the tamils have head weight because of literature, it means that your literature is really teaching you arrogance instead of meekness.
In my travels across India, I came across tamils who were so arrogant that they do not even respond nicely once they come to know I am from AP. Also, in Chennai I have seen instances when people who speak hindi / north indians, were ridiculed by native tamils. Is that what your literature is teaching ?? If this is a result of your literature then I say that it has a very bad influence on tamils.
But one think I appreciate about tamils and keralites, they have a sense of unity and brotherhood among their own people which has no parallel. I just wish all Indians were like that or atleast all states are like that. But alas, it is not to be !!
I would recommend You to read Tamil Literature for Yourselves. The ridiculing of North Indians is because there is a wide spread perception that they are trying to Impose their language on us.
As far as You getting No response as because You are from AP, may be you have met some locals who have lost their livelyhood to AP immigrants.
For your knowledge, There are numerous Telugu communities (Naiker, Naidus and Reddy) living throughout TN. Many of the notable industrialists in Coimbatore (LMW, Roots etc) belong to the Telugu community. They are prosperous and well respected by the other Tamil communities. Same in Madurai and Tanjavoor. We are more open to accept other communities in our State.
You know how much animity arises with the Mullai periyar Dam issue with Kerala. But You don;t know about the Mallu communities who live in Tamil Nadu. Many Students from Kerala live and Study in TN. Many Keralites have made Coimbatore as their Home. Nobody feels indifference.
There is a healthy Sourashtrian community living in Madurai. They form a significant Vote bank.
There is a healthy parsi community in Coimbatore,
A very healthy Marwari community in Chennai. Even the notable actor Jeeva and his Producer tycoon Father RB Choudary belong to this community.
A Kannda actor Arjun Sarja has made Chennai as his home and he is a star there. What about Rajini?? He is the super star. But he is not a Tamil.
Mamooty, Mohan Lal, Jayaram, Prithvi Raj Are among the many Malayalam Actors who have great fan base in TN.
Prakash Raj is from Karnataka and he is widely respected in TN.
Even EVR Periyar is Telugu by birth.
There are Large number of Kannada communities (Vokkaligar, Kannada Chettiar, Gowda) Living in Erode, Coimbatore, Salem Districts. they are Living peacefully and are great traders and Agriculturalists.
Ther is signinficant Telugu population in Chennai.
Dont make asumptions on a community just because You had a bad experience.
I am living in Bangalore for two years and I have had instances when I was ridiculed for being a Tamil. But I have many good friends in Kannada community and I dont make a fus about it. Even My best friend is a Kannadian.