Abolish political parties.
I’m very curious to know how exactly you want to word this law to acheive the effect you’re dreaming of without it being unenforceable, without it being weaponizeable as a mass voter suppression tool, and without creating a freedom of speech or freedom of assembly violation.
A fair voting system allows people to vote for whatever reason they want. Voters want to win. Banding together to focus and force multiply campaign resources increases chances to win. Political parties are an inevitability in a fair system.
I understand the vibe of your sentiment is to not allow political parties to grow to the overcentralizing control they have today. You’re not particularly concerned about, say, a band of guys who meet up at the pub to figure out who they’re gonna organize a collective vote for. At least I hope not, because the alternative sounds wildly dystopian. But like, what’s the line in the sand between the two? How do you define the difference, legally?
The goal is to make it so self-declared private organizations can’t be an official part of the election process. At the moment, the state holds primaries for political parties, and helps them keep track of who’s in which one which helps maintain the duopoly.
I’m sympathetic to the concept, but I think that the advantages that organized parties have in terms of coordination (e.g. people with broadly similar values and policy goals choosing one candidate to represent those goals to avoid splitting the vote and seeing someone antithetical to those shared goals elected) are sufficiently strong that you would just see the current primaries replaced immediately by a primary process run completely independent of government oversight and resources. I can’t imagine that being good from a perspective of electoral legitimacy or reducing the influence of money in politics.