Even if there is no free will (at the level of the individual)
'No free will' I would generally take to mean a completely deterministic universe.
there remain statistical likelihoods based around the factors which make up each individual- factors which can be manipulated. As such it might therefore be greatly harmful to fail to admit the totally deterministic society-
This sounds like you are agreeing with me that conditions can be manipulated (intentionally) towards desirable ends. Re: deterministic society - that sounds like the accident we have now, not a desirable or necessary condition.
for in doing so we would fail to achieve the manifest benefits of determinism...
Manifest benefits of determinism?
Merely because we feel like we make a decision, how does that give us any guide to the actuality of the process which leads us into making the decision?
Can we not instead decide on how good a decision is based on it's benefits? Why should it matter how we get there?
Anyway the real issue rests at the level of how a will can be free, and if the individual's personality and mind is reasonably static within the time scale on actually making the decision, then they are to a certain extent fixed- determined- and as such will always make such a decision.
From my point of view the real debate isn't about free will but about attitudes to personal responsibility. In any case I think you are equating 'will' with mind here which I wouldn't do.
Its still YOUR decision, even more so than the free will position in fact... there remains ownership of the decision, and hence the feeling of choice making. But Choice making need not mean that you could have acted otherwixse, merely that someone else would have done.
This follows on from your definition of mind as a mechanical process. Like society I don't think it should necessarily be seen that way, even if that is often the prevailing mode.
Are you really denying the logic of what I outlined above; that it is potentially very dangerous to completely refute the existence of free will - especially if this is wrong, whereas to assume free will can not possibly be a problem and may even be right.
I don't think that total free will exists on an individual level but I do think it does to an extent.