Do MNCs reduce job opportunities at home countries? Yes vs. No

As multinational corporations continue to move production oversea, there is an increasing concern whether American jobs are being transferred to foreign countries. On the other hand, some argue that offshore production increases efficiency and profitability of U.S. MNCs. The increase in income helps to create more and new jobs at home.

please make bullet points agreeing and disagreeing whether multinational companies reduce job opportunities at their own home countries. (the more points the better)