The Supreme Court only blocked one avenue (international economic emergency powers). The President immediately imposed a 10% national security tariff. Offshoring manufacturing, especially in pharmaceuticals, steel, aluminum, chips, and rare earth minerals, is a national security risk.
The US built Asia's economies on the back of its manufacturing and middle class, at national security risk. The Commander-in-Chief needs to be able to pivot and make decisions that affect the US economy without it coming at the expense of the US.