I think we've already got about the last thing in the world we want. Enjoy...
No human method is going to clean up this mess. None.
A Constitution which was as blessed as it was, was forged by a group of forefathers who put great stock in a providential God, though differing in how they treated theological details (some outright Christian, some Deist). Perfection wasn’t needed to be useful to and blessed on an earthly level by a providential God; only sincere dedication according to what they knew of this God (and all agreed on using the bible as their central text).
Until these spiritual conditions are recreated, this won’t recur. The very best thing to attempt would be for sincere, devoted Christians to spearhead a movement entailing both prayer and work. Some people find a big spiritual value in fasting; that’s fine as long as you’re not also judging your Christian neighbor who effectively works and prays but doesn’t fast. Satan would love to split up a pan-Christian movement over spiritual pride.