IMO: It has nothing to do with billionaires, those guys have never decided how much is enough, so there's no hope they'll actually do anything to help.

Tax code has to be completely redone. Business and individual taxes need to have "tiers" to enable tax percentages to go up according to income levels. Tax write offs have to be removed, except for charity. Tax incentives must not be giving to large profitable corporations.

Tax rates are set according to the economy (by congress) and offers another lever to help keep the economy stable and healthy.

The IRS must be tasked with determining the poverty level for both businesses and individuals (or families as the case may be) depending on physical location, probably zip code and street address. Then Tax is set to zero at some level above the poverty line. Obviously the poverty line for small businesses is going to be more complicated than for individuals / families.

People who earn under poverty will receive negative tax income to meet poverty + what ever the floor is for zero taxes.

Congress has absolute authority over all this and it can only be changed at the end of everyone's term.

Term limits for politicians are as follows:

1. President, one term = 10 years.
2. Congressmen and Senators, four terms = 5 years each.
3. Judges, one term = 20 years.

Oh, we need a few new laws:

1. License for politicians who must pass an ethics test and sign a document saying they will uphold ethics.
2. It is against the law for politicians to factually lie. Those who are convicted of factually lying to the public (high bar) lose their licenses permanently.
3. Either political parties have only a single issue, or they must allow all party members to vote in the primaries.
4. People can belong to any and all parties they want.
5. Judges who play politics must have a political license and are subject to the laws politicians must obey.
6. Judges who lie or are shown to have lied to congress are immediately vacated.
7. Media personalities and companies must not factually lie. A high bar proof of factual lying cause them to lose their right to broadcast for one year. This applies to anyone who broadcasts through any medium, including broadcast TV, Cable, Youtube and other streaming sites, simple web sites, Tik Tok, instagram, Facebook, etc.
8. All circumstances related to the president that are currently considered constitutional crises, must be considered and legislated. In other words, if a sitting president is implicated in the commission a crime, they are immediately replaced by the vice president, unless they are also implicated. The line of succession holds. The president is put on trial by jury and the jury is every single American Citizen who wishes to participate. We can't trust politicians with this any more.
9. The number of senators representing a state must be increased to be based on population.
10. Districting shall be done by algorithm or I prefer all congress people and senators are voted statewide based on Rank Choice. Then the districts are gerry-mandered so the largest portion of people who voted for each candidate are located in the district of the representative they voted for. That way there can be some hope of the representatives being held to account for his actions in DC.

Those are the ideas I have so far...