Because the system is rigged against 3rd Parties, the Dems and the GOP have worked hard over the decades to make it all but impossible for 3rd Parties to get on ballots. For example, it can vary from state to state the amount, but 3rd party candidates need to get thousands of signatures in each of the counties they want to have their name on the ballot in. Meanwhile the Dems and GOP have gotten state laws passed that automatically put Dem and GOP candidates on the ballots like an reward for voter involvement in the previous election.
Getting on the ballots at all for 3rd parties costs a lot of money and time to do. It’s generally why you only really see 3rd parties pop up for the presidential election, which just sort of becomes a joke because it’s usually a nutter like Jill Stein.
Oh anyone who actually thinks that would be sorely disappointed. She has direct ties to Putin, and Michael Flynn. Jill has also refused to call Putin a war criminal.
Until such a time as we can roll back those state election laws that the GOP and the Dems got put in that make it difficult for 3rd parties to run, we’re going to be stuck with the 2 party system.
But Jill Stein, she’s just a bit too sus for me, and I’m guessing for a lot of others, since she barely gets any traction each election she’s involved in.
https://www.newsweek.com/jill-stein-ties-vladimir-putin-explained-1842620
https://www.factandmyth.com/political-commentary/russias-helping-hand-jill-steins-boost-from-kremlin-putin-interests
https://www.thedailybeast.com/jill-steins-recount-cash-pays-for-her-russia-legal-defense/
https://www.newsweek.com/2017/09/08/jill-stein-interview-russia-trump-645722.html