Arguments for God's Existence from Contingency

[RoadRunner79]

Well backwards causality would only make sense like that if time ran backwards, and the notion of time running backwards doesn't seem to make any sense either. And it's worse than that because you seem to  be expecting causality and time to run BOTH ways. D cannot cause A if D's existence depends on being caused by A. That's just circular logic and it makes a mockery of the very idea of causation in the first place.

I think there are only two ways to argue against the notion of a first uncaused cause, and the 1st is to deny that the universe is finite and the 2nd is to deny causality. What you're talking about doesn't seem to be any logical sense of causality at all.

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It shows no such thing. You don't seem to even understand how logic works. Logic actually has to make sense and follow logically, logic doesn't just have to seem smart and result in a conclusion you like the sound of. I am correct because the argument indeed does NOT show that the uncaused cause must be God.

That or time runs two different ways at once

I don't see how you can get away from the above, if you are postulating an infinite regress.