Bill Pugliano/Getty Images(DETROIT) -- A potential strike at the Big 3 U.S. automakers -- General Motors, Ford and Stellantis – would threaten the livelihood of up to 143,000 workers and the bottom line at some of the nation's top companies. The economic fallout, however, could extend far beyond the immediate players involved. Businesses may lose out on spending from striking autoworkers. Car component suppliers could grind to a halt. Consumers may decide to balk at higher prices. A six-week strike would cost the U.S. two-tenths of a percentage point of economic growth over a period of three...