Tlaib did so well mostly because she’s a socialist, not just because of supporting Palestine. People are sick and tired of neoliberalism squeezing their finances while the rich get richer, which is why so many of them are succumbing to fascist bullshit. Embracing more leftist economics is the only way for the Democrats to win in the future (assuming the opportunity will still exist), but they’re too wedded to both the status quo and sucking the teats of their corporate donors to accept it.