MAGA did not try to upend the pro-buisness nature of the Republican party. MAGA and old school republicans serve the same masters.
Progressive reformers have a much steeper hill to climb, as it would require a near-total destruction of the Democratic Party status quo in order to effect meaningful change.
Both D and R politicians are deeply addicted to dark money donations; we have legalized bribery and corruption. Ending this addiction, even in one party, is not a small, simple act- it is a revolution.
Or maybe this isn't about status or money.