That's a bald-faced lie. I know of no one in the Reformed tradition that believes what you wrote.
John Piper:
“Has God predetermined every tiny detail in the universe, such as dust particles in the air and
all of our besetting sins? Yes… Now the reason I believe that is because the Bible says, “The dice are thrown in the lap, and every decision is from the Lord” (Proverbs 16:33).”
“God is able without blameworthy ‘tempting’ to see to it that a person does what God ordains for him to do even if it involves evil.”
R.C. Sproul Jr.:
“God wills all things that come to pass…
God desired for man to fall into sin. I am not accusing God of sinning; I am suggesting that
God created sin.”
Edwin Palmer:
“All things that happen in all the world at any time and in all history–whether inorganic matter, vegetation, animal, man or angels (both good and evil ones)– come to pass because God ordained them.
Even sin– the fall of the devil from heaven, the
fall of Adam, and
every evil thought, word, and deed in all of history… Foreordination means God’s sovereign plan, whereby
He decides all that is to happen in the entire universe. Nothing in this world happens by chance.
God is in back of everything. He
decides and causes all things to happen that do happen. He is not sitting on the sidelines wondering and perhaps fearing what is going to happen next. No, He has foreordained everything ‘after the counsel of his will’ (Eph. 1:11): the moving of a finger, the beating of a heart, the laughter of a girl, the mistake of a typist
– even sin…Although
sin and unbelief are contrary to what God commands…God has included them in his sovereign decree (ordained them, caused them to certainly come to pass)
.
Gordan H. Clark:
*** “I wish very frankly and pointedly to assert that if a man gets drunk and shoots his family, it was the will of God that he should do it…” He goes on to assert, “Let it be unequivocally said that
this view certainly makes God the cause of sin. God is the sole
ultimate cause of everything. There is absolutely nothing independent of him. He alone is the eternal being. He alone is omnipotent. He alone is sovereign. Some people who do not wish to extend God’s power over evil things, and particularly over moral evils…The Bible therefore explicitly teaches that
God creates sin.“
.....