Easier said than done.
Just look at the large homes that employ 2 or 3 maids or the coffee shops where foreign workers now operate many stalls.
Now that is what one can see done openly - what about the thousands of SMEs that operate behind closed doors and high fences? Or the remote estates far away from prying eyes.
Malaysians are simply too lazy and we always want the easy way of doing things and not the correct way. Even the government operates on this wavelength.
What about the thousands of illegals that managed to become citizens through some magic process in Sabah?
A proper study needs to be done so this can be carried out smoothly. One measure that may be useful is that the levy collected from employers can be used to conduct skills courses for idle youths and even those in prisons so they can get proper jobs on release.
Employers can also be awarded matching grants to automate factory processes but this must be handled carefully but people will find loop-holes.