Now assume that initially the government does not effectively block illegal immigration but finds a way to prevent all illegal immigrants from working in this labor market. What impact will this have on the labor market? multiple choice 300,000 domestic-born workers will gain employment, but total employment will be reduced by 300,000 jobs. 200,000 domestic-born workers will gain employment at the expense of 500,000 illegal immigrants. 150,000 domestic-born workers will gain employment, but total employment will be reduced by 300,000 jobs. 150,000 domestic-born workers will gain employment, but total employment will be reduced by 450,000 jobs