Immigration is a widely practice all over the world and history of humanity, it is part of human culture to move around the world.
The roots of immigration of workers vary in time and places, so it is hard to identify who was to blame for the plight of immigrant workers, to define it we must consider each case and its parties.
Most of the time the plight of immigrant workers is the result of a combination of problems related to people country of origins and the country that receives them.
In the country of origins of immigrants we can blame things such as: bad government, environmental crisis as natural disasters, conflicts as wars or financial and economic problems. This all will motivate the immigration which can them leave workers in hard situations.
On the other side we might blame things in the country that receives the immigrant workers, as the government inaction or the inability to the country legally absorbs these workers, results of national policies for immigration and as well companies and other people who employs this immigrants taking advantage of this situation.
So due to this situation the workers will be prone to work in conditions that might be extremely harmful or danger. We can see as well people and companies that take advantage of this situation and pay low wages or don't respect work laws because this people aren't protect under this umbrella.
Because of no option many immigrant workers will submit themselves to harsh conditions of work in the country they are.
Inexperienced, mature, imitated and/or sophisticated
The response was that the government should not interfere with the market since it would ensure the prosperity of everyone in the long run.
The 19th century was known for government wanting to meddle in the affairs of the market because the second half of the century, after the civil war, marked the beginning of the reconstruction and the beginnings of the progressive age when the government wanted to meddle in the market and protect the workers who unionized more and more.
John Locke is the enlightenment thinker most associated with the idea of gender quality. I’m sure that’s him...