Political Memes

I think you fundamentally misunderstand how things function. If the Republican party is destroyed, Republican voters will fracture into multiple parties, dividing conservative voters and making it impossible for any one of the new parties to compete with the Democrats in our winner-take-all, first-past-the-post electoral system. The federal government would become a defacto single party system, with the Democrats being that party. Conservatives likely would coalesce around a new single party and join efforts to try and take on the Democrats, but that party would exist to do nothing but obstruct, like the Republican party today. So we would once again be in a situation where there is one party trying to represent a plurality of Americans and an opposition party trying to obstruct everything that party wants to do.

If we want a system of plurality and proportional representation, it would require changing not only the US constitution, but 50 state constitutions as well. How do you propose accomplishing that with two parties competing for control, when one of those parties wants only to obstruct?