Do we allow bank robbers to go free because they may blame the robbery on you? Ummmmmm.
Wrong question.
Should the authorities be allowed to break down your door, seize you house and assets, throw you in the pokey and make your life a living hell because someone stole your identity?
The problem with moral absolutists is that they know only one thing: act first and ask questions later...
It's for the children.
No. We cannot allow perverts, crooks, terrorists, et al free reign because of the FEAR of action being taken against innocents. This thinking would never have allowed the wild west to be tamed, this country formed, laws made or prisons built. We would all be subject to any onslaught by those wanting to take from us with no help from law enforcement to protect us.
We just have to be sure there are safe methods of recourse should an innocent have to face the system.