The Democratic Party started working with disaffected GOP at the end of the election rather than their own constituents yelling for representation.
They find this slide in tyranny more acceptable than fighting against it.
Anything would have worked in 2020 as long as it had a pulse and wasn't named Trump. We got Trump policies with Democrat faces - there's no need to wonder why Democrats and left-leaning independents didn't rush out to vote in '24.