Maybe you should study the nature of the Reformed view of double predestination a little closer.
Maybe.
I was relying on my increasingly fallible memory. I thought (that some) Calvinists here hold that this verse:
Isaiah 45:7
I form the light, and create darkness: I make peace, and create evil: I the LORD do all these things.
Teaches that God is the creator of moral evil. It looks like I either misunderstood, or misremembered.
Sorry about that.
DG