Capital is only safe in the US if you respect it's economic, technological, and military primacy. Ask Russia or Iran if they would be willing to store their wealth in the US. Iran's on a permanent blacklist for nationalising US economic interests and challenging American military influence in the middle East, and Russia too for daring to use its military on Ukraine in a world where only the US has the prerogative to invade other countries.
China's different from those two in that they've been exceptionally careful not to spark a shooting war and to keep enough profits flowing to US companies for the past few decades to keep them placated. But now China's shaking off the leash by building up an indigenous high tech ecosystem that can challenge the US and trying to be the dominant military power in East Asia. Any country that challenges the US can expect its wealth confiscated.
Don't expect the current situation to defuse anytime soon. China's goal to be technologically independent eats into the profit margins and future R&D expenditures of US high tech industries, and China's goal to be the military leader of East Asia threatens America's post WW2 influence over Japan, South Korea, Taiwan, and the Philippines. Both countries want what they believe to be their fair share of the world, but the sum adds up to more than 100%. Both countries also believe they'll be the winner in the end. What better powderkeg could you ask for? Someone will have to give ground at the negotiating table eventually, but that'll only happen when both sides agree on what the actual balance of power between them is and it might take a war to find out.