At 29, with her Puerto Rican heritage, megawatt smile and 3 million-plus Twitter followers, Rep. Alexandria Ocasio-Cortez embodies the rising power of younger female nonwhite digital natives in American politics. If Hillary Rodham Clinton, or HRC, reflects the past, AOC foreshadows the future.
But as a role model for Democrats who desperately want to defeat Donald Trump, AOC is not A-OK. She repres…