Mathematically, a first-past-the-post system will inevitably result in a two-party system (perhaps with the occasional success of a regional party).
There is nothing you can do within the system to change that - you can only vote for the party that better reflects your views (and pressure them to continue to do that).
The thing you do to dismantle two-party politics is advocating for other electoral models: proportional representation; single-transferrable vote or approval voting; etc.
Seen this story of how a group identified the IP addresses of posters on a notorious anonymous economics web forum?
Well here's the original paper. The techniques are pretty jaw-dropping:
https://www.insidehighered.com/sites/default/files/2023-07/ejmr_paper_nber(1).pdf
nostr:npub1s0r8zptndf0k50uzxhpn8dkpuwh02lsltfvcvmw0knazgv73krwsm8972x this was a delicious read; thank you! (Also I can't wait to see the fallout.)
Me: huh I haven't been getting as much Engagement™ on here lately.
Also me: *does nothing but post extremely niche bullshit for an entire week*
Every once and a while I check in on the state of college sports and...
Friends, if you follow nostr:npub14ukaj9jxt92unn28r7z42n475c7u6typ2cu8wyur4eqrk67tyz9sxs2erc you know that college sports are not okay, but let me tell you: specifically, the conference situation is just Out Of Hand.