The spur of industry lead to a huge increase in immigration because of the amount of jobs available in the US. The industrialization of the US resulted in the development of technologies that helped to produce goods cheaper and more efficiently. Along with this, the demand for labor also increased. Business owners knew that if they hired more people, they could make more products. If they make more of their product, they can generate more revenue.
With this in mind, it is easy to see how immigration increased. Immigrants were persuaded to come to the US due to the amount of job opportunities for individuals of all skill level.
