Why are you so afraid to give God his due?
Of course God was the creator of sin and evil. God created all things to His purpose. But sin and evil are nothing to God except that they cause consternation for His creation.
"Nature, Mr. Allnut, is what we are put in this world to rise above," says Katherine Hepburn to Humphrey Bogart in THE AFRICAN QUEEN.
Where do you think sin and evil came from?
I wonder if all your co-religionists here agree with you, ma'am? I would be delighted to hear a chorus of the 'enlightened' on your point.