The Episcopal Church cannot be cleansed. Why? It is argumentative whether Darwin or the German royals (including those of the present generation) were more damaging to the Church of England (and thus to Episcopalians). Darwin assured the elitists, albeit obliquely, that rampant promiscuity was OK; the final nail in the coffin was when the German royals, through their own actions and neglect of the Church, instructed the flock that it was OK not to believe.
I will buy what you say about the coffin nails in the CofE, though I don't really know. I'm just saying it may not be possible to cleanse it because the enforcement mechanisms do not exist. It really is NOT one Holy Catholic and Apostolic Church (or part thereof) it is a system in which each diocese is largely a power unto itself. Griswold and the communist/secularists at the top have no power over us but we have no power to shut them up except to withold donations, which I am doing.