The only pattern I'm seeing is your misrepresentation of the facts.

ACA was not bipartisan.

The 2 trillion dollar "infrastructure" bill that spends 7% of itself on infrastructure?

The DNC and the GOP are filled with the same kinds of people seeking to get the same things by the same means but one is marketted to you and the other is marketted to someone else. That's it. If Democrats really cared about the poor they wouldn't push for higher minimum wage laws(which hurt poor people and help large corporations), or look the other way during the riots last year, or push catch phrases like "defund the police" when it disproportionately hurt black, brown, and poor people to do so. The DNC does not give half a fuck about poor people. That is why they chose people like Kamala Harris and Biden to be the nominees (you don't think that they won the Dem nomination democratically, do you?) If the DNC cared about the poor Bernie Sanders would have been it's nominee in 2016 (and I would have hated it). He would have beat Trump too. But the DNC exists to funnel money into Ratheon etc.

Also, lookup examples of how to use "sea-change" correctly.