Priests have shown more than potential to molest kids, so I guess we should just ban all of them, by your bizarre logic.
In the country I live in, we can't charge them or otherwise deal with them because of "potential" violations.
Besides, you're acting as if I'm advocating letting them in. I am completely in support of the Scouts, but I wish we weren't such a scaredy bunch in this party. If the Scouts want to ban people with green eyes, it's their right, but they surely wouldn't say it's because people with green eyes have the potential to do anything.
When did we all become such freaking scared old ladies?