So I just discovered that I have been working next to the waste of oxygen that raped my best friend several years ago. I work in a manufacturing environment and I know that you can’t fire someone just for being a sex offender unless it directly interferes with work duties (in the US). But despite it being a primarily male workforce he does work with several women who have no idea what he is. He literally followed a woman home, broke into her house, and raped her. Him working here puts every female employee at risk. How is that not an unsafe working environment? How is it at even legal to employ him anywhere where he will have contact with women?
No, it isn’t. You can fully believe in people’s ability to rehabilitate and change, while also being aware that not everyone rehabilitates and changes.
The needs of the perpetrator of a crime need to be balanced against the needs of society at large. This is why you get your license taken away from you when you drink and drive, or why you end up on a sex offenders register.
In this case, there’s a valid argument to be made that this person represents a danger to society, and the need to protect/inform people from him outweighs his desire to not have past crimes revealed.