I realize that South Carolina Republican U.S. Rep. Nancy Mace is an attention-hungry partisan, trying to make a name for herself as a culture warrior by demonizing the first transgender woman to be elected to Congress.And I understand that giving Mace’s proposal to ban transgender women from women’s bathrooms in the Capitol any oxygen is probably just what she wants.But I also don’t think it’s wise to allow her fear-mongering and demonizing to go unanswered.Earlier this month, voters in the state of Delaware did something momentous: They elected Democrat Sarah McBride, a transgender woman, to the House of Representatives. At...