If your intention is to make the population understand that the registry is not needed, then an emotional appeal to them about ‘it isn’t fair’ is the wrong way to go about it. It wasn’t/isn’t fair what offenders do or did to their victims, and as for ‘collateral damage’ inflicted on families of offenders? Well… The offenders themselves did that. I cannot fathom why you think the public at large will change their minds about the registry based on sympathy for people whose misery is the sole responsibility of those who perpetrated sex crimes on others. To be blunt, you are barking up the wrong tree.
Legal arguments and appeals to reason. Facts dont care about feelings.