How do modern tech oligarchs and social media platforms pose a threat to American democracy compared to historical concentrations of power?

According to David Remnick, today's tech titans represent an unprecedented threat to democracy because they possess both enormous business interests and powerful social media tools that can amplify their influence. Unlike previous eras of concentrated power in American history, these modern oligarchs are 'supercharged by social media' and appear willing to compromise principles to protect their gigantic business interests. The sight of tech leaders occupying prominent seats at the presidential inauguration symbolized this dangerous merger of corporate power and political influence, creating what Remnick describes as 'the most ominous' development in American power dynamics.