Luther, as an ex-Augustinian, was no doubt heavily swayed by teachings such as this.
Gotcha. Anything bad Protestants do or say is the Catholics' fault.
I guess Calvinist "utter depravity" is really a code phrase for "it's the Catholics' fault, not ours!". Why don't you just change the "U" in TULIP to read "utter Catholic depravity; utter Protestant innocence"? That would seem to be more consistent with your approach.