Soft Determinism is like wanting rain upon the fields n sun over the house, a bag of tricks used by philosophers so to keep the best of both worlds, yes to my view it is politics...
The fact of the matter is that determinism either is true or not true, there is no possible attainable logical middle ground. Human beings are made of matter and if matter is subjected to cause and effect then human beings are just the same subjected to cause and effect like anything else. Unless of course you believe there is some kind of special force out of physics, out of this world, like a soul or a spirit, that allows you to interrupt the chain of cause and effect n still be able to cause n effect on a one way direction.
(not 1 but 2 problems in a row)
Yes it is true that minds think, it is true that minds make calculations and weight the pros n cons in deciding, but the core question, the point is to ask if a given mind could in a X situation have decided otherwise? I think not. A more complex system might appear to be free because its acting and taking decisions, but on a deep down level, is just hiding the process of cause and effect onto a thinner, more subtle layer of processes. Bottom line, the inherent physics, is just the same !
When we act we have reasons to act...compelling reasons are compelling reasons, and compelling, even when we don't know what the actual reasons were. Studies have shown human beings are perfect in finding patterns and justifications so to explain their decisions when they often don't really know what motivated the decision making, its quite laughable, they make up anything, and they really believe it. But even when the reason you present is the correct reason (which by the way is so rare) the very underlying problem remains, could you have acted otherwise ? Well, either people believe in physics or they don't, there is no half way in there !