Tucker Carlson sparked a wave of backlash with comments about the so-called “white replacement theory” on his Fox show Thursday evening. In response, Anti-Defamation League CEO Jonathan Greenblatt sent a letter urging Fox to dump Carlson, and now he’s saying the network needs to rethink its entire lineup.Tucker Carlson sparked a wave of backlash with comments about the so-called “white replacement theory” on his Fox show Thursday evening. In response, Anti-Defamation League CEO Jonathan Greenblatt sent a letter urging Fox to dump Carlson, and now he’s saying the network needs to rethink its entire lineup.