If there is no free will in the way that Sapolsky and others like him claim, then his proposal to eliminate the criminal justice system is pointless - as Ron pointed out, it implies that society has no free will to choose to get rid of the criminal justice system. I doubt that Sapolsky would appreciate it if I claimed that my lack of free will caused me to bop him over the head with a two by four in an attempt to knock some sense into him.
The reality is that physical events can be interpreted as deterministic or as free will. People like to claim that science supports whichever one they favor, but the reality is that science does not tell us that. In particular, evolution gets invoked as supposedly supporting free will and as supporting determinism. In turn, free will and determinism both get invoked as supposedly better supporting one’s political stances.
The version of determinism promoted by Sapolsky is a rather naive version, functioning primarily as an excuse. Much more sophisticated determinism exists, but this echoes the “new” atheists justifying their poor philosophy by attacking philosophy in its thorough lack of knowledge joined to pretensions of authority.