Does not make it the truth. There was a Jaffna Kingdom .. Sri Lankan Tamils are there for more than two thousand year at least .. In Sangam Literature itself there is mention of Karikala Chola having bases there.
Saivite Nayanmars, 1500 years ago have sung hymns in praise of Tamil Shiva Temples in Thiruketheeswaram and Thirukoneswaram.
There is absolutely no doubt they have right to their lands if equality is not given.
CHeck Pandyan and Chola Kingdom Maps, North East of Sri Lanka is ruled by Tamil Chieftains only.