You cant explain things like this to conservatives anymore. They only believe Trump. You can give them proper, non-partisan sources that plainly explain how tariffs work. Videos. Books. Etc. it doesnt matter, we are firmly in a post-truth society now and they have been thoroughly brainwashed to believe whatever Trump says, and never trust any source that goes against what he says because those sources are obviously corrupt, have an agenda, are part of the deep state etc.