Which factor explains why ross Perot made this prediction about NAFTA?

Ross Perot predicted that NAFTA would lead to job losses and economic decline in the United States due to the potential for companies to relocate to Mexico for cheaper labor. He believed that the agreement would create a "giant sucking sound" as jobs were siphoned off to lower-wage countries, undermining American workers and industries. Perot's concerns were rooted in his views on trade imbalances and the impact of globalization on domestic employment.