Unions are basically dead. Less than 10% of the manufacturing workforce is in a union. The sole driver of offshoring is to NOT pay first world wages for labor. Labor is only a small part of manufacturing costs, less than 8% in most cases. More like 5%. But 5% is a lot to add to a bottom line, regardless of the destruction it causes in the USA, socially, politically and economically for the individual and taxpayer with little or no benefit.
5% for the unions.
35% corporate taxes.
~10% regulations
~15% health benefits
So far we’re up to 65%. Businesses have no patriotic duty to lose money.