You underestimate the USA's appetite for war with China, especially before the PLA achieves military parity. The USA has been drawing down combat operations in North Africa and the Middle East in preparation for open conflict in APAC since Trump took office. Many leaders on both sides of the American political spectrum (and in the military) believe such a war is necessary to the survival of the United States if Xi is able to achieve military power, as Xi has been threatening the USA with death for years in both public and private.