That’s a fair concern to a degree of course even the most fair sentences might have a disgruntled person on the other end of it but a fair justice system that serves and protects its community equally has little to fear overall. When a justice system is unfair, unequal, does not serve or protects its community that risk goes way up however they only have themselves to blame for the increased risk. An occasional crazy is just the price of being a human but if the public in general is against you, you’ve done that to yourself through your own actions