Scouts the land, State, Local Work Force, Local Wages, Taxes, Transportation Logistics, Local Managements, Regulations, Permits, Building the actual factory, Cost of Production, Final Price Point, will it be competitive USA or will the USA Made Version only be selling in USA due to price point?
By the time any company have crushed this numbers, its easy to see how its simply not viable in cost, not time (It will take longer to set up things than waiting out this administration to leave).
The best Trump will get out of this is smaller countries that already cant afford USA made Goods "Remove their Tariff", While all the "Big Players" Will just retaliate.
and on the mean time, American Consumers will be passed down the bucked off the tariff as inflated price at the registers.