By: Salman Rafi SheikhPhoto by Anthony Kwan via AP ImagesAt a moment when Washington is urging Beijing to step up as a global crisis manager, China is doing something far more unsettling: nothing. With the United States grappling with overlapping conflicts and strained alliances, Beijing’s refusal to intervene isn’t hesitation; it is by design. China is allowing American power to dissipate under the weight of its own commitments. In today’s geop…