WASHINGTON—President Joe Biden has promised that he would elevate diplomacy and seek a more coordinated approach with U.S. allies to address trade challenges posed by China. His strategy to unite friendly nations to pressure Beijing, however, faces a rift as partners like Germany and France have already signaled that they are not on the same page with Biden. French President Emmanuel Macron last week pushed against the idea of building a bloc against China, calling it “counterproductive.” “This is a scenario of the highest possible conflictuality,” Macron said on Feb. 4 during an interview with the think tank Atlantic Council. “This one, for me, is counterproductive because it will push China to increase its regional strategy,” he said, adding that it would also discourage Beijing from cooperating on global issues such as climate change. Macron’s comments came after German Chancellor Angela Merkel refused to side with the United States to contain …