No to unity government

I am glad that the Pakatan Rakyat has jointly turned down the Umno-PAS idea for a unity government as seen here.

I mean why is there calls for Malay unity whenever Umno seem or perceives to itself to be weak in the arena of Malaysian politics.

Had the unity government become a reality Pas may have been the biggest losers in the next general election since non -Malay support did jolt them into making political inroads.