Why were americans in the 1990s concerned about outsourcing?

B-"Some worried that reducing trade barriers would cause outsourcing to foreign countries, leading to job losses within the United States"

Explanation:

Outsourcing is what we called when a company gets some products or services from an employer outside of the company payroll, they pay him, but they do not get the social benefits or the taxes taken, this is cheaper for companies than having an employee doing that job, when outsourcing became more trend in america in 1990´s internet gave the possibility to outsource to other countries, like india, china and south america, where workers charged considerably less than the american worker, and this could meant loss of jobs for the american people.