Every country has extremists, TNA gains voting by promoting this situation but it does not mean that all are supporting them, see the election results which held in few months ago if government has killed innocent Tamils then will they give that much votes?
Department of Election
Who treat them as 2nd class citizens? Come and see with your own eyes! All citizens have same rights.
Tamil don't have voice in SL parliament? Come on mate, at least use Google. There are dozens of Tamil MPs including pro LTTE ones, SL governments also have Tamil ministers! Sri Lankan police has Tamils, few years ago even when there was terrorists problem our (IGP) Inspector General of Police was a Tamil too! Army has few Tamils coz of security reasons, some of them got killed by Tamil Tigers! coz of security reasons and death treats by Tamil Tigers there are few at the moment, but our intelligence units of army has Tamils.