Downfall of Tamils, Why?

Why Tamils alone remain downtrodden of all the races of this world? "Only among Tamils one can see a lot of people speaking other languages, multitudes of people following other religions and people of Tamil nadu living in various countries. Further, considerable number of people belonging to other countries live continuously in Tamil nadu alone. That is why, unifying the Tamils or efforts to unify the Tamils could never take place in Tamil nadu. [...] ... Read more