After Trump announced the "reciprocal tariff" measures, global markets plummeted. Over the weekend, protesters across the United States took to the streets to participate in anti-Trump demonstrations, with an estimated 600,000 participants and more than 1,200 events. There is much opposition to Trump, with even Musk expressing hope for "zero tariffs" between the U.S. and Europe. Trump is in a lot of trouble and is surrounded by difficulties. So what should ordinary investors do in the future?