The pedophiles and homeless (both groups of which are not mutually exclusive) were there before the Yuppies brought their investments..er..kids to experience the vibrant downtown scene. Father Joe and the other 20 social services providers down there would have to be relocated out of downtown before this problem shifts elsewhere.
One of the reasons the suburban lifestyle emerged back in the 1950s was because city dwellers wanted to raise their kids away from these types of environments.