Re “Trump’s illusions about China” (Opinion, Feb. 6): I find a huge irony in Jeffrey D. Sachs’ observations that neoconservatives are “beside themselves” over the growth and power of China and are recommending strong actions to drive China into “economic retreat.” Who but the conservatives have championed unfettered US industry, which has created a powerful China with its transfer of manufacturing skills and capacity and, perhaps more important, its transfer of technology to China.