No, a win for Trump does NOT mean American business will pay more, it means American business that use foreign labor or raw goods will pay more. If they use Chinese steel (which is most likely bought from Japan) instead of American steel then yes they pay more. If they use American steel then no tariffs. Unfortunately they shut a lot of American steel mills down chasing profit and now the bill is due.
Business often take less profit when their costs go up. I buy boutique flight simulator gear, those companies suffered from both increased cost and supply shortages of electronic components during the pandemic. Their prices did not go up because they already charged a premium to begin with. Raising the price would have only hurt sales so it was a zero sum game.
Your example is absurd. No car in this world uses $20,000. worth of steel. An average SUV takes about 1 to 1.4 metric tons of steel. The most common steel used in manufacturing an SUV cost about $800 to $1,000 a ton. $1400 dollars plus 50% tariffs would be about $2100, nowhere near your absurd $30,000. If you are going to use an example try to use one that is less stupid.
