A toxic environment is livable—just not long-term. You can either leave the environment or do the hard work of removing the toxin.
Mistakes are decisions. You need to make decisions to go forward—and everyone is going to make the smart decision only to have undesirable outcomes, from time to time.
How the toxin got there could have been a mistake. And so choosing to live with the toxin while you clean it up feels like re-living the mistake over and over.
Let it go. A mistake isn’t permanent—it’s only repeated if you refuse to choose again.