Reasons to inserting neutrality tags is very much funny   

 Requesting facts from Obi2canibe  

 SLT resorting to militancy due to their sympathy on Indian Tamils and Sinhalese by some government cruel actions against Indian Tamils and Sinhalese ( Indian Tamils - CC Act, Sinhalese - standardization). Better you can say You were hurt by Aryan Barbarian discrimination in India and since SLT unable to reach Aryan in India, SLT raised arms against Sinhalese who are also Aryan section. But give me references how Tamils get hurt from this and I will include them.
 Please give references to Tamil heritage out side of Sinhalese kingdom(With SLT). I will insert them to the article. 
 Let me know when Tamils drops the colonization (Land) is a major issue since this has clear relationship to Sinhalese expel in 1215. I will drop claim the conflict started to appear since 1215.
 Let me know you needs to start a section war crimes by both parties.
 Let me know you needs to include genocides by both parties. I only know genocides by LTTE (Temple tooth,muslim church, secreat tree, kent dollar farms,... ). I will merge it with your list