Voting for the best politicians on your ballot is necessary but not sufficient. We need two-thirds of the House and Senate so we can amend the Constitution. No matter how great a single candidate, no real change can be made if they are the lone voice; it doesn't even matter if they become President. We need to take the entire process back for the people, and when we do we gotta exorcise all the corrupt laws and policies.
Just to name a handful: abolish Electoral College, create publicly funded elections, abolish gerrymandering, implement ranked-choice voting, abolish all non-public money in politics, create harsh penalties for institutional economic crime, re-separate powers and strengthen checks and balances, clarify that corporations are not people and money is not speech, create strict penalties for environmental destruction, clarify the limitations of powers we've learned from recent Presidential/Congressional/Judicial actions, etc.