The Steelworkers have persuaded the government to impose a tariff on tires imported from China. This seems to have sparked a trade war that will result in reduced Chinese sales for American companies and higher prices for American consumers.
If the unions wanted to do something useful for their members, they would lobby the government to insure that overseas workers had the right to organize and strike as American workers do.
The unions would then organize and lead the overseas workers to bargain for the pay and benefits that American workers have fought for and won. But the current crop of union leaders are to busy scamming the American workers and the American public to truly benefit anyone but themselves..