As Someone who has owned businesses since I was 30, the fact that Trump's tariffs will cause permanent damage to the world is obvious

 The biggest result will be the number of people dying from Starvation? Why?

Because they won't have enough money to buy food to survive and will likely if they want to live have to resort to stealing food in one way or another.

So, the biggest result of Trump's Tariffs are likely to be an increase of crime and starvation worldwide like during the Great Depression. In one instance, hundreds starved to death alongside of a river in tents in the wintertime here in the U.S.  This type of mass starvation occurred across the U.S. and millions died worldwide, not just here in the U.S. by the way.

So, this time it will go worldwide (Again) because of Trump's tariffs.

The main reason Trump is into Tariffs I believe is personal deals with countries who will bribe him and his family to get a better deal. So, the ONLY person actually benefiting from Trump's Tariffs is actually Trump and his family. 

Anything else said is actually a lie in real time because the ratio of people even here in the U.S. is 50 suffering economically for ever 1 person helped.

So, the ONLY one really helped by Tariffs is Trump being bribed by the countries personally so they can sell to the U.S. at a lower price.