Ram is Aryan because it said so in Ramayan. His only duty as Kshatriya is to protect Brahmins and cows and to spread polital caste system.
What is Lord Muruga's caste? can you tell me?
Do you have any Tamil or Dravidian literature that promotes so much abt caste? no. because dravidian system was based on 'philosophy of reasoning' whereas Aryan system was all about Varna system.