That is what the Senate is for. A minority party should never get control of all three branches of government with only 46% of the popular vote. Control of one

That is what the Senate is for. A minority party should never get control of all three branches of government with only 46% of the popular vote. Control of one branch of government is sufficient to exert influence on the legislative process. In our current setup, the minority party has zero reason to appeal to the median voter. This results in increasing polarization as the two parties are no longer competing against each other for voters, but instead are trying to drive turnout.