It's not really so much about the party moving "left" as much as them not appealing to their base or representing their constituents' ideals. Kamala was asked if she'd done anything differently than Biden and she said no. When most Americans are facing economic uncertainty, that's about the worst thing you can possibly say. People vote for change and they weren't willing to sell that. They too went on TV and said the economy is great because of the stock market.

The party has no teeth, they're not willing to talk about major issues like economic inequality because they too have to bend the knee to the oligarchs. Bernie had the right idea by fundraising on grassroots but the party seems to think they can keep toeing the middle and appeal to the "moderate Democrat" which simply doesn't exist.