Most so-called "sex offenders" are no danger to children, or anyone else. They've been put on the registry for non-sexual acts, like taking a piss in an alley behind a pub, or harmless acts like streaking, or consensual acts between a 17 y.o. and an 18 y.o. Many are teens who have been charged as child pornographers for consensual sexting. Under the law, if a 15 year old girl sends a topless photo of herself to her boyfriend, both of them can be charged with child porn offenses and put on the sex registry for life.

Some are literally kids, prepubescent children, registered as a sex offender for "playing doctor" or other harmless activities, if some cobweb-cunted prude catches them and reports them. Prosecutors don't give a shit about justice, only about getting as many convictions as possible so they can tell the voters they're "Tough On Crime".

Even the ones who have genuinely committed a sexual crime have done their time cleared the slate, most of them will never offend again. Very, very few sex offenders are repeat offenders.

The ex-husband of a friend of mine was convicted of sexual assault, and put on the sex offender registry, on the basis of no more evidence than the say-so of two young women who accused him of grabbing their tits even though he could prove that he was in an airplane halfway between two cities a thousand miles away at the time of the supposed offense. The judge obviously thought that the jury was insane, because he refused to send the guy to prison, releasing him on good behaviour instead. But the sex offender registration was mandated by law and the judge couldn't do anything about that.