BEIJING—China accused the United States of violating the Olympic spirit on Tuesday after the Biden administration announced a diplomatic boycott of the Beijing Winter Games over human-rights concerns. Rights groups have pushed for a full-blown boycott of the Games, accusing China of rights abuses against ethnic minorities. The US decision falls short of those calls but comes at an exceptionally turbulent time for relations between the powerhouse nations and was met with a barrage of criticism from China. The US is attempting to interfere with the Beijing Games “out of ideological prejudice and…