Trump will try to threaten anyone who dares to even think about joining BRICS and going against USA. Now, he has only implemented tariffs but later on... who knows what else will he do to maintain the us dollar's position. What I think, though is his illogical decisions regarding the tariffs may only drive the countries further and further away from him. If this continues, USA might be onto some humbling.
Import tariffs will not be paid by the seller (for example, China), but by the buyer, that is, the population of the United States. If it is not possible to include the tariff amount in the final price, the seller will simply stop the delivery (redirect the sale to other countries). Meanwhile, many goods cannot be replaced because in a post-industrial society there is simply no production of these goods. It is very difficult to quickly recreate the production.
The tariff is a clumsy attempt to reduce the national debt, in theory at the expense of importers, but in fact it will turn out to be at the expense of citizens of the United States. But most of the population lives on benefits from the state. Then what is the meaning of this fuss is unclear.