Every single person on the planet has "Mental Health Issues." That's because brains don't come in one standard size. If it were represented in a character creation screen, there would be around 25 different sliders just to determine what we think of how the air smells after it rains.
Some people just have "Amoral" and "Evil" cranked way up there. These people can't be "fixed" because that's just who they are. To that end, they need to be put away before they commit murder, or permanently removed from society via execution after they commit or attempt to commit murder. I'd suggest the same treatment for anyone whose brain has a series of boxes checked that amount to "molesting children isn't THAT bad, is it?" or the guy whose subroutines equate an unwilling woman with a woman who is only acting like she's terrified and resistant. In short, let's all protect the good from the evil, and stop trying to fix the evil at the cost of leaving them in society to do more evil to the innocent good.
Side Note: With the increased knowledge into just how a brain functions, and how you can change a brain to bring about an altered person as a result, I call into serious question the morality of medicating or eventually permanently altering the brain chemistry of the so called "Mentally ill." One day, what you and I believe or think may be classified as a mental illness and taken from us by force. Read "This Perfect Day" by Ira Levin. It's about a society of nearly gender-neutral, docile, unambitious drones who eat nothing but totalcakes and receive their weekly "treatments" to keep them manageable, whilst Unicomp, the planet's central computer, regulates everything from who they may marry to whether or not you're allowed to cross a street.
Addendum: If in the future, anyone in power does decide that anything I think or believe equates to mental illness, I'd just like to go on record that I'd personally prefer execution to being changed into something which I am not.