Do you think by raising tariffs and taxes that obligates an American firm to do business here?
Change "obligates" to "encourages" and the statement is partially correct. If tariffs and duties did not serve some purpose, every other country in the world wouldn't be using them, but they are.
American wages are taxed and taxed and taxed. Some of the disparity in labor costs can be removed by both eliminating the taxes on American labor and charging the foreign entity tariffs for the opportunity of access to the American consumer market.
The American market is currently wide open compared to those of our foreign competitors.