Such evidence certainly leads to a conclusion that specific, detectable brain activity is associated with consciously driven choices. But the limiting factor in this is that we only have means to detect physical activity.
Even so, and within limitations, knowledge can be gained and further knowledge sought. This also involves developing methods to investigate phenomena, so if you must stress that there are limitations - and nobody will argue with you - you are still saying nothing of substance.
If there is also some none physical element involved in our conscious choices we have no means of detecting it.
Then you'd better get on with developing theories, hypotheses and methods for the 'non physical element' you presume instead of wittering on.
We are still left with the problem of how conscious awareness can exist within physical reactions.
Not really: current thinking is that conscious awareness is an emergent property of our biology, and you are again falling head-first into the fallacy of composition.
Using the term "complex" does not explain how conscious awareness can be produced by physical reactions of material elements.
That is where the evidence leads, Alan: so I suggest you give up on 'god' since your beliefs are clearly screwing up you reasoning abilities in that you keep repeating a mantra that is holed beneath the waterline.
True to form, your usual fallacies are evident.