Right-wing populist Javier Milei gains support in Argentina by blasting 'political caste'.He believes selling human organs should be legal, climate change is a "socialist lie," sex education is a ploy to destroy the family and that the Central Bank should be abolished.He also could be Argentina's next president.Javier Milei, an admirer of former U.S. President Donald Trump, is the latest example of how right-wing populists are making inroads in Latin America, appealing to a citizenry angry with politics as usual and eager for outsiders to shake up the system.A libertarian economist and self-described "anarcho-capitalist," Milei made a name for himself by shouting against the "political caste" on television.His presidential candidacy looked like a sideshow until recently.Polls show his popularity rising, and his proposals dominate discussions ahead of the October elections.Fans recently lined up at the Buenos Aires Book Fair to see him talk about his latest book, "The End of Inflation," on addressing Argentina's most pressing economic issue; inflation running at an annual rate of more than 100%.The book calls for cutting spending, abolishing the Central Bank and moving to the dollar.Many of his fans never made it inside.They're mostly young men who treat the 52-year-old politician like a rock star and affectionately refer to him as "the wig" because of his signature unkempt hair.Some analysts have questioned whether Milei can win without a national structure to mobilize votes.For now, his popularity has failed to help his allies win elections in provincial races.But Argentina's presidential election includes a runoff, which means that squeaking by to the second round could be enough for Milei to ultimately win.