

It’s not like the two party system is deliberately chosen or enshrined in law. The field naturally winnows down to two parties because that is basically guaranteed to outcompete every other possibility under a first-past-the-post voting system. You want to fix the two party system, you need to fix our voting system.
What do you mean “cling to the idea they can’t be reached?” A huge portion of political spending goes towards trying to increase turnout (of the people likely to vote for you).