An interview by The Nut Graph with Mukhriz Mahathir. Highly suggest you read it.
Finally, I found a rational argument from an UMNO-BN man.
"Umno being the dominant party within the BN, right from the word go, we were open to, in fact we propagated this whole idea of power-sharing within the BN. And we defend that all the time by making sure that the number of seats allocated during the general election meets the requirements of all the parties involved.
Secondly, we do not practise a policy of assimilation. We consider the Malay culture as being the dominant one, but we do not force it on anyone. You do not see us going the way of Indonesia or Thailand, where other races are expected to immerse themselves into the dominant culture to the extent that their original cultures are nonexistent."
To continue click here - http://www.thenutgraph.com/mukhriz-malay-dominance-rights
Also read related articles by Dr Chandra here - http://letusaddvalue.blogspot.com/2008/12/must-read-best-summary-of-our-ethnic.html