U.S. small businesses are reeling under the weight of President Donald Trump's tariffs.Unlike large retailers, many of which have the resources and scale to blunt the effects of higher costs, many small companies facing bigger tariff bills are struggling to survive.Eunice Byun, the CEO of Material Kitchen, a small business that sells kitchenware for the home, said the complexity of her supply chain has increased tenfold."We've definitely taken it on the chin year-over-year in terms of our top line revenue," ...