What happened to triangular diplomacy?

From Wikipedia article on triangular diplomacy

In political science, triangular diplomacy is a foreign policy of the United States, developed during the Vietnam War (1955–1975) by Henry Kissinger, as a means to manage relations between the contesting communist powers, the Soviet Union and China. Connecting heavily with the correlating policy of linkage, the policy was intended to exploit the ongoing rivalry between the two Communist powers (following the Sino-Soviet split (1956–1966)), as a means to strengthen American hegemony and diplomatic interest.

Since the beginning of the conflict in Ukraine, the US seemingly have failed to rally China against Russia. The recent trip by Nancy Pelosi seems to push China even further away (although formally president Biden has disapproved of the visit, it was likely coordinated with him).

Have the US abandoned (or was forced to abandon) the triangular diplomacy? Why? What are the realistic alternatives? (e. g., have the US become powerful enough to oppose Russia and China united?)

I am be mostly interested in the analyses on the subject by leading policy makers/strategist (e.g., those published in journals like Foreign Policy, etc.)