polarization noun [1]
: division into two sharply distinct opposites
especially : a state in which the opinions, beliefs, or interests of a group or society no longer range along a continuum but become concentrated at opposing extremes
political polarization
… the relationship between partisan polarization and legislative gridlock is direct, with stalemate more frequent as the political center shrinks.
— Sarah A. Binder
The drift in our society now is not toward a grouping around the middle, but toward polarization.
— Richard Todd
… the venue where our most fractious … arguments over identity occur: the internet. These arguments do not play out on a democratized playing field where all identities are weighted equally; rather, they play out in a meticulously crafted environment where identities are microtargeted and polarization is amplified by algorithms.
— Emma Levy
polarization noun [1] : division into two sharply distinct opposites especially : a state in which the opinions, beliefs, or interests of a group or society no longer range along a continuum but become concentrated at opposing extremes political polarization … the relationship between partisan polarization and legislative gridlock is direct, with stalemate more frequent as the political center shrinks. — Sarah A. Binder The drift in our society now is not toward a grouping around the middle, but toward polarization. — Richard Todd … the venue where our most fractious … arguments over identity occur: the internet. These arguments do not play out on a democratized playing field where all identities are weighted equally; rather, they play out in a meticulously crafted environment where identities are microtargeted and polarization is amplified by algorithms. — Emma Levy
[1] https://www.merriam-webster.com/dictionary/polarization