There's a difference between supporting tariffs in certain situations and the absolute insanity that is the Trump tariff policy.
Putting huge blanket tariff's on almost every country in the world is crazy. We should not have a trade surplus with every country in the world. The United States cannot produce tons of important, everyday products.
For example, America has never had, nor will it ever have, a major coffee industry because it is not a local crop. We do not have the climate to produce it at scale. So, we import almost all of the coffee we drink. Now, Trump has put 10%+ tariffs on Columbia and Brazil, where most of our coffee comes from. All this does is make your morning cup more expensive. It will not result in the booming of a domestic coffee industry.
There is no purpose to this other than virtue signaling to stupid people.