I know the Bee is a satire site, but reality is much funnier in this case - she blamed it on racism and misogyny. Now THAT is funny.
So, let's examine this claim. In 2019 Lightfoot won a runoff election with Toni Preckwinkle, another black woman. So in 2019, Chicagoans' gave 2 black women enough votes for a runoff election, which resulted in making Lightfoot mayor. Fast forward to 2023. We can only conclude based on Lightfoot's complaint that since 2019 Chicago has been repopulated with a majority of sexists and racists, which cost Lightfoot the 2023 race. Ok! /s