I'm not denying that God destroyed these 4 cities. The question is how?
Answer: He abandoned them. The result? Death!
Let's say that you turned in a drug dealer. Because you were a state witness the cartel has put a price on your head. So the Government gives you 24 hour protection.
After about 3 months you grow tired of not being able to move around freely and inform your FBI agent you are going into town, alone.
The agent begs you to reconsider, but you are hard-headed and go anyway. Guess what? The cartel murders you.
Question: What kill you?
Answer: The cartel.
Who allowed it?
Answer: The FBI agent. So he assumes the responsibility of your demise because he could have forced you to stay, but that would go against your free-will.
Why did the agent allow you to go? Free-will. He tried to talk you out of it...he lectured...he pleaded, but no you had to go.
So really who is to blame?
Answer: You! It was basically suicide. You chose to live your life without the agent and you died.