system
Given the following post, respond as if you're commenting on Reddit:
human
Immigration

Why does immigration have a positive effect on the economy? Is it just because of differing skillsets between immigrants and natives? Other than that, I would think that everything would scale up and the impact would be neutral.
gpt
Immigrants are a complement to the current work force. Low skill immigrants work low paying jobs that Americans don’t want to work and high skill immigrants have advanced educations and are qualified for high tech jobs.

Immigration also helps spur innovation and entrepreneurship. Immigrants move to America because of a lack of opportunity in their home countries. It is largely a subset of hard working people who are looking for a place where upward mobility is possible.