Fire was never a problem for anything until humans evolved enough to abuse it and make gunpowder, etc.
Who created humans?
If you birthed a kid who turned out destructive despite your best efforts of parenting, should we blame you?
You're fond of the catch-phrase, "creator of all things seen and unseen" - but you clearly don't believe it. You're constantly adding to the list of things your god didn't create.
The answer is still the same: If you create an attractive nuisance, yes, yes, yes, you ARE responsible for the harm done by it. Whether it's a tiger trap or fire, yes, yes, yes, the creator is responsible. The answer will always be the same, so you can stop asking the question. Yes, yes, yes, the creator is responsible.
And don't give me that old canard that God by definition should be responsible for fixing everything that inconveniences or hurts humans.
Not "should be". Is. It's not a canard. It's an obvious truth. If you think it's a canard, SHOW how it is.
God may or may not exist but there will again come a time when many people will pray that He does.
That time has already come, many times. People have been praying to gods for help ever since the first shaman made up the idea of gods. Sometimes people even convince themselves that the gods have answered their prayers.
"I call that bold talk for a one-eyed fat man!"
-- Lucky Ned Pepper