President Javier Milei of Argentina took the World Economic Forum by storm with a provocative keynote speech on Wednesday. The libertarian leader delivered a blistering critique of socialism and a fervent endorsement of capitalist principles before a crowd of the world’s most influential political and economic figures. Milei, having been introduced by Klaus Schwab himself, then proceeded to confront the elites with his fiery speech. The 53-year-old president did not hold back in his rebuke of the West’s slide toward collectivism — a political theory associated with communism. “I am here today to tell you that the West is in...