BRINDISI, Italy — The United Nations is seriously stepping up its campaign to undermine free speech, online freedom, and a surge in opposition to globalism worldwide. Pointing to what it calls “international law” against racism and “intolerance,” the UN is demanding a global crackdown on fundamental human rights as well as what is described as “nationalist populism.” In particular, the U.S. Constitution's First Amendment must go. As part of the attack, political and economic ideas the UN hates — populism, concern about corrupt elites, nationalism, individual liberty, borders, and more — are also now officially in the UN’s crosshairs. Basically,...