First, you need to make a distinction between pedophiles (adults with a strong or exclusive sexual attraction to prepubescent children) and child molesters. You can be a pedophile without being a child molester, you can be a child molester without being a pedophile.
Who knows how many adults there are who are exclusively sexually attracted to prepubescent children who never act on their attraction? These people know their attractions are socially unacceptable, so I'm sure they would keep them hidden from even their closest friends.
Calling for a death penalty for child molesting would give child molesters a perverse incentive to murder their victims. If the penalty is the same for murder and molesting, why not also murder, and lower your chances of getting caught? So, you can choose between social vengeance, and more dead children, or sane policies designed to help those inclined resist their urges, sentencing and treatment based on the best knowledge we have available to prevent them from reoffending, and other sane policies designed to prevent these crimes.
Who knows how many adults there are who are exclusively sexually attracted to prepubescent children who never act on their attraction? These people know their attractions are socially unacceptable, so I'm sure they would keep them hidden from even their closest friends.
Calling for a death penalty for child molesting would give child molesters a perverse incentive to murder their victims. If the penalty is the same for murder and molesting, why not also murder, and lower your chances of getting caught? So, you can choose between social vengeance, and more dead children, or sane policies designed to help those inclined resist their urges, sentencing and treatment based on the best knowledge we have available to prevent them from reoffending, and other sane policies designed to prevent these crimes.