Why were Mexican workers able to finish jobs in the west and southwest?

Mexican workers were able to finish jobs in the West and Southwest due to a combination of factors, including their strong work ethic, skills in various trades, and a willingness to accept lower wages compared to their American counterparts. Additionally, many Mexican laborers were familiar with agricultural practices and other labor-intensive jobs in the region, making them valuable assets to industries such as farming, construction, and mining. The demand for labor during periods of economic growth also contributed to their employment in these areas.