No false equivalence should be drawn between the two about how they used their high-profile platforms. Carlson rode racism, cultural warfare, and conspiracy theories to cable news ratings dominance and outsized influence within the Republican Party. Lemon was an outspoken critic of former president Donald Trump who switched from a solo show in primetime to a morning show with two cohosts, and who recently drew fire for a sexist comment he made on the air. That ineluctable truth was forcefully driven home Monday by the nearly simultaneous news that Tucker Carlson was ousted from Fox News and Don Lemon had...