WASHINGTON — The past couple of weeks have marked a turning point in American ugliness as the mob has turned its full fury on first lady Michelle Obama. From criticism of her trip to China to a recent “tell-all” by former White House assistant press secretary Reid Cherlin writing for The New Republic about Mrs. Obama’s allegedly tyrannical behavior, the gloves have been removed. As described, she was a perfectionist — super-attentive to detail and laser-focused on advance planning.