I came to a very different conclusion on criminality in the absence of free will: compassion and understanding.
How often do children do shitty things, and then say "I don't know" when asked why they did it? I have personally had problems lashing out in anger and not even understanding why. Our brains put a lot of effort into keeping us away from painful thoughts and memories. All of that is to say that you don't have to invoke determinism or quantum mechanics to demonstrate that people aren't always consciously in control of their actions.
Some people are far more capable of compassion and forgiveness in the face of tragedy when they can see that a genuine accident occurred, or when they understand the generational trauma that laid the ground work for unthinkable choices. Why not take it one step further and recognize that we're all stuck on this involuntary ride and we all deserve a little grace because none of us could have chosen any differently?
Does this mean we expect the aggrieved to forgive the perpetrator? No. Does that mean we cease handing out jail sentences for dangerous crimes? No again. But if there is no free will in the choices we make, what's the point of punishing people? I get that people who hurt other people should feel remorse, and people who are dangerous should be isolated, but how can you say anyone deserves punishment when their actions are predetermined?