You tend to conflate two separate issues. The first issue is your claim that your (supposedly omnipotent, infinitely powerful) God is not powerful enough to endue His creatures with libertarian freedom. (Not a terribly convincing position).
You not only posit a god who, though somehow creator, is not omnipotent, but you scorn his inability to do self-contradictory things! You spraypaint a picture onto an oily surface floating on a river and think you have created a masterpiece.
The main problem is that the entire Bible, with respect to morality, justice, and divine retribution, makes absolutely no sense without libertarian freedom.
The second problem is that I already refuted your (effectively) "Only Cause" claim by referencing angels. Angelic movement is self-caused by free will, much like divine animation.
"The main problem is that the entire Bible, with respect to morality, justice, and divine retribution, makes absolutely no sense without" God's causation. In fact, nothing at all makes any sense unless God caused it to be real.
That was the first issue. The second issue is your repeated insinuation that libertarian freedom necessarily boils down to meaningless random chance. As you put it:
This is the fallacy of special pleading. You admit that, for God, libertarian freedom is a valid concept. You then insist that, for man, it is necessarily a self-contradictory concept. Make up your mind. No self-respecting Arminian will take seriously your blatant inconsistency and double standard here.
You say, "You admit that, for God, libertarian freedom is a valid concept." To be able to consider your thinking to be at all cohesive, I will assume you mean by that, 'libertarian freedom' concerning God —not libertarian freewill on man's part. God has absolute freewill, because he is God, omnipotent first cause. He did not show up on an already established scene. He is not subject to any external fact, nor, of course, to our fallen and weak human concepts concerning any fact, nor our language describing any concept.
WE, on the other hand, are mere creatures, yet you want to invoke, concerning our choices, absolute freedom from causation. It is absurd! We DID show up on an established scene, established by God, caused by God. We are within that scene, part of that scene. We are in every way, caused!
If, then, man is caused, and so his choices are caused, yet as you claim, not caused by God, what did cause one man to do one thing, and another man to do another thing? —the only option you are left with is self-contradictory 'causation by chance'. This, you, and all your ilk, disguise with phrases such as 'libertarian free will of the creature' and 'God-given spontaneity'.
Your only whimper, against the simple logic of causation descended from first cause, boils down to this: "But it's not fair!"
