I personally believe that strategic tariffs should be used to protect our national interests, including providing meaningful employment.
This administration has no interest in strategic tariffs. Instead, they are made overbroad (50% on everything from Canada vs, say, cheap imported steel) and they are made and removed capriciously (tariffs on English whisky dropped after King Charles' visit to the White House).
If Trump really wanted to bring your dad's factory job back, he'd specifically target whatever industry he was working in AND ideally spend the tariff money boosting that industry. This is precisely the strategy countries like Japan used to reach first world status.
Instead Trump uses tariffs like a cudgel -- much closer to what the XKCD comic depicts. There is no chance his tariffs will lead to your father's factory ever being reopened, as that would require, at the bare minimum, a tariff that investors know will stay in place for years, as opposed to one that could be lifted with the visit of a charismatic member of nobility.