There is no point of no return. We currently have a glut of bad ideas due to relative wealth buffering us from the consequences of bad logic. The consequences are still there, they are just delayed. But I can stay pretty well at peace, because all bad ideas are unstable. They will always always lose to the truth in the long run. It is an evolutionary inevitability.
Things will go back slowly, then suddenly. It is one person at a time living as they aught. It is countless families just tending to teaching their children the truth.
It will seem helpless but that small fraction of families will have half the next generations children and then 75% of the following generations grandchildren.