These  are not "undocumented immigrant/refugees"  we're talking  about here. These are illegal aliens who entered this  country illegally.  These persons are genuine Illegal Immigrants, or  more simply put,  Illegal aliens who as their first action have  demonstrated a disrespect  for the laws of the nation they have entered.
There  was a time in the  early 70s when the majority of the illegals who  crossed the Philippine/Indonesian border were not the dregs of  their  countries  society , they were then as in the case of a Filipino  migrant  , fleeing a civil war; but times have  changed.  Those who come  here now seem to be a more criminal  element...they are transporting  drugs.  They are involved in gangs and  have been in trouble in their  motherland  before they came here.  They are not  coming to work hard  and become Malaysians; they are coming to rape the  system.  I have  lived on islands  along the Philippine  border.  I've seen the  changes  in the way the illegals travel across the Sulu Sea.  These days, they  are ruthless and plunder everything in sight  arbitrarily, with no  regard for property or  livestock.  They never used to break into homes  along the way - now we  have to lock and bar everything.  And the crime  rates continue to rise  wherever they congregate. 30 or 40 years ago,  this wasn't  true...and it's annoying
When laws cease to be recognized or  applied and enforced, chaos is most often the result  , and the state of  Sabah is in its  worst shape then ever before  with  58% of its 3 plus  million  population are either PTIs or persons with dubious Malaysian  citizenship .  Welfare, free health care, and other public services  accorded to these illegal  immigrants  is  pushing Sabah to the brink.  Needless to mention of the countless of genuine Sabahans   killed each  year by Illegal immigrants and countless others maimed for  life that  illegal immigration doesn't hurt.. These statistics alone 'shall' by any  means serve as a guideline to any given politician who flirts with the  idea of granting this segment of the states population amnesty  regardless of the fact that an RCI is carried out to look into the  illegal immigrant menace   . 
Just  because the current system is not working is not a reason to reward  lawbreakers with the prize of Permanent Residence .And since an idea as  stupid as this (granting of PR Status) happens to come from the  President of an opposition party  , the present administration should  see this as a good omen and since  support from the east guaranteed BNs  hold on to Putrajaya , it would be a  political right thing to do on  Prime Minister Najib’s part to look into the mother of  all problems  plaguing Sabah and at the same time manufacture remedial  measures to  solving the ‘ legalized ‘ illegal immigrant fiasco .
Many  argue that   immigration    is a social issue, but it’s a fiscal issue  as well. The illegal immigrant  population has grown by an average of   hundredths of thousands  per year since 1972,  plus an additional  hundredths of thousands new births in those households. That’s  approximately a  million new people every decade, and  almost all  immigrant families are  using welfare, especially  Medicaid welfare. 
When  Nobel Prize-winning libertarian  economist Milton Friedman was asked  about unlimited immigration in 1999,  he stated that "it is one thing to  have free immigration to jobs. It is  another thing to have free  immigration to welfare. And you cannot have  both."
Why illegal aliens shouldn't be granted Permanent Residence Status let alone Citizenship