Punishment is the weakest form of behavioral modification when it comes to someone like Chris, who will never be able to see his confinement as anything other than unfair. He'll spend however long he's put away for in a constant state of fear - because prison really is an awful, awful place - and he'll continue to blame SEGA, the trolls, etc. for his punishment. He will not learn from jail, only become an ever more wholly damaged human being.
Behavioral correction, despite the similarity to the term "corrections", is only one of several aims of criminal justice. While one might believe that Chris's behavior will not be corrected by incarceration, this does nothing to address the other aims that certainly will be met. First and foremost, the sister goal of correction, incapacitation, is clearly met: Chris won't be able to commit more crimes against the general public during his incarceration.
Deterrence is also met, though to a lesser degree (but certainly no less than with any other common crime): the public will have the idea that improper use of pepper spray is a criminal act reinforced in their minds.
Finally, one of the oldest goals of criminal justice, true punishment, is certainly met. Chris will (hopefully) get his just deserts. This, at least in theory, operates by reinforcing people's confidence in the justice system, and encouraging them to use the police and the courts rather than extrajudicial self-help. At least in this case, the principle might still carry weight in terms of satisfying those who detest Chris, finally silencing their rumblings, because they will be shown that Chris drew a punishment that his behavior deserved.
At any rate, I also disagree that behavioral correction won't take place. Should Chris be incarcerated, he will be required to attend some kind of counseling. If he actually breaks as some people have predicted here, he will be put in a mental hospital unit where he will receive more intense psychiatric care. Regardless of the outcome, whatever happens frankly cannot be worse than leaving him on the outside.