Cheap labor is based on work experience and also certificates of expertise. The price of a job is cheap. because it does not require expertise to make policies and decisions. the thing that can be done to get to reduce the price of a job is to take advantage of technology.
I think it also depends on the model of work, because if it's a job like agriculture or plantation, of course you can see a worker through the experience and knowledge he already has so that the determination of his salary can be very clear. But if it is a farm or plantation that already uses certain machines or technologies, what must be seen here is the manager of the machine or the one who runs the technology. Because certain machines or technologies also cannot run by themselves if there is no operator to operate them.
if the workforce in question is related to the public, such as social services. it can not. It's different if the work in question is related to technology, it could be replaced with a machine. for example in agriculture. The country can make the concept of automatic irrigation for example.
Technology-related workers are workers who have been previously trained in managing and operating existing technology, because workers who can manage machines are usually paid on a service basis. As for automatic irrigation, I think that there must be a special water reservoir in a reservoir which can also be used by many people for several areas.
Since I went to school and was taught about economics, I concluded that too large a population is a serious problem for the economy, but after many countries reported population shortages because many people did not want to have children, it now creates a more complicated problem, many places or cities now have to look for workers cheap labor from abroad thereby making production costs higher.
From the beginning I have never thought that the human population is a problem, because in fact it has been seen that the number of human populations clearly has benefits for the country and also for the founders of factories or companies that require a large number of workers. So that certain countries are currently paying more attention to the human population in it so that those who have factories and companies can use them to work in companies or factories. Thus the level of economic turnover will also be better because the production of goods and services can always run without stopping.