you mention words or phrases such as "past experiences", "consideration" and "weighing the emotional content". Are these not aspects of our conscious awareness? Yet you continue to presume that our choices are predetermined within subconscious brain activity with no consideration about our current state of conscious awareness.
You keep confusing consciousness as referred to in its casual sense, eg awake, and consciousness as described by cognitive science in terms of autobiographical near term memory with no executive function
in a strict sense.
I've never claimed our choices are 'predetermined', but rather they are 'determined' or 'resolved' through competition between rival options. Our minds implicitly value all perceptions and higher abstract constructions with a common currency of emotional content and this provides the underlying basis that allows choices to emerge.
If you are considering which house to buy, you may be considering this over a period of months, and the neurological subtleties of a fraction of a second's consciousness lag is totally irrelevant to the resulting choice. What is relevant, is the fact that your total life experience to date informs the choice you end up making and you cannot claim to be free of that without claiming to be random. The choice you make reflects who you have become and we cannot change the past in order to become someone else at the moment of decision. Perhaps 3 months of deliberation over which house to buy will eventually come to a head, and that is the moment when your preference became sufficiently clear, and when you know what your preference is, you cannot just decide to find that you prefer something else instead.