What Sedition ?

I read from the History of Islam that following the exodus of the Muslims from Makkah to Madinah on the Hijrah led by the exalted Prophet Muhammad S.A.W., the hosts in Madinah were referred to as the 'ansar' whilst the migrating group from Makkah the 'muhajirin'. It was a way of identifying the people between the two groups.

In Malaysia (Tanah Melayu or Malaya previously) the Malays and the aborigines have usually been all along identified collectively as the 'indigineous' people, and the other races would therefore fittingly be called the 'non-indigineous' in order to distinguish a former from the latter. But such other races as Chinese and Indians were not identified as such but was instead referred to as the 'migrant races' at one time or another in the recent past.
As part of the terms for the Independence of Malaya imposed by the British colonialists upon the Malay leaders, the Malays ought to grant citizenship to the migrant Chinese and Indians, and in return those migrant races should recognise certain rights & privileges of the Malays under what is known as the 'Social Contract' of Malaya.
I find it extremely enigmatic when reference to the Chinese community as a 'migrant race' by an UMNO divisional head recently became a big controversy among the Chinese political leaders in the MCA and Gerakan (both BN components) calling it seditious (which is severely punishable under the Law).
It appears to me that the Chinese now refuse themselves to be recognised as a 'migrant race'. Are they now demanding to be classified as the 'indigineous people' just like the Malays or the aborigines ? Are we going to see a Malaysian History re-written subsequently ?