No, the cause is structural. Even if one could identify the sources of rot (money in politics, an outdated electoral college, the collapse of our information environment, whatever), Congress would deadlock, the Courts would block any meaningful reform, and the President would be left trimming the blight while the rot festered underneath.

Which leads to the people.

The only ones that could cause change needed to reform their representation in the political system is the people. The incumbents have no incentive to do it.