I doubt even the combination of a purge with many indictments/people sent to jail + a landslide victory in 2020 would cure the problem in the long term. The basic underlying issue lies in a loss of ethics & morality among a large portion of our population. This cannot be corrected/overcome in a short period of time as it involves not only a restructuring of societal norms & values but also a revamping of our entire educational system. A religious reformation could/would be the answer, but based upon human history, that likely isn't going to happen without the 'shock & awe' of a major upheaval such as another world war, a civil war or an international calamity.
But perhaps I am too much of a pessimist.
But perhaps I am too much of a pessimist.