I agree LUHE with your "final solution", I mean conclusion LOL, because I cannot find it in me to fully agree with Capital Punishment. But the problem is that most Sex offenders are never reformed, at least not completely, they are still full of perverted desires, even if they refrain from actually carrying them out, and of course many do go on to re-offend.
So we, the long suffering Tax Payers, have to pick up the Tab for all those years in Prison that they rightfully spend.