We’re willing to be sinful because we’re made that way. God must have seen that his design was flawed if what he wanted was humans to obey a command not to sin.
He might as well have commanded fish not to swim.
Sorry I don’t get the point or the relevance of your long billionaire analogy. Keep it simple please.
The bit about the billiionaire analogy is to point out that for God to truly demonstrate sacrificial love, the situation has to arise in which He can do so.
God is the billiionaire. We are the beneficiaries. Since everything belongs to God, it is fairly easy for Him to just give us things - good health, the sun rising tomorrow, fertile soil, good weather, fossil fuel just laid on so we can go through the industrial stage, intelligence, creativity, family life, etc. etc. It all comes from Him.
But that doesn’t cost Him much. Feeding a crowd of 5000 and changing water into wine seemed to take very little effort on His part. The sudden drying of ground and clothes at Fatima in on October 13 in 1917 after days of rain should have required about the same energy as a 2 megaton nuclear explosion according to scientists. Yet all God just pulled the ace out of his sleeve, and hey presto, it was done. How much did it cost Him? Not much as far as I can see.
But dying on a cross did cost Him. The Billionaire paid in a way that demonstrated His love. And that could only have happened in a world which required it.
That cut deep.
Hence His plan necessitated a fall, regardless of how that came about. Without the fall, He could not demonstrate the depth of His sacrificial love.
As Paul wrote, “God has bound all men over to disobedience, so that He might have mercy on them all” (or something similar). And how did God show mercy? By suffering an incredibly painful and humiliating death on our behalf.
The Fall was a part of His plan. In that respect He is responsible. Yet we are responsible for our own actions. Hence my father could say, “I always was doomed” and yet also admit, in the same exchange, “I was WILLING”.
Was Hitler predestined? I think he was. I’m always bemused by how a one-time bohemian artist bumming around Vienna circa 1908 for about 5 years and selling post cards for a living could within 32 years become the brutal dictator of most of Europe.