In short: tariffs are a tax. They are a regressive, consumption tax, meaning that they hit everyone at the same rate. That means as a percent of income, it hits working people harder than rich people. And, they’re inflationary. Tariffs increase the price of imported goods and incentivize companies to increase prices of domestic goods. They’re generally good for a few select businesses and bad for consumers.
Free trade is the foundation of capitalism, it's frustrating seeing folks gleefully accepting the privilege of paying more so they can pay for billionaires' tax cuts. Even more frustrating is, prices will never go down--they raised because of the pandemic (demand, existing tariffs), then raised because of post-pandemic conditions (supply chain, inflation), now they're going to increase even more (increased tariffs). And for absolutely nothing.