It's not like peds and pederasts will announce themselves.
Unless they join NAMBLA and go into political action.
Homosexuality doesn't necessarily track with these forms of criminality.
You have to have a baseline somewhere, judging an entire group for the actions of a few is wrong. But doing a background check on people is logical.
Most pedophiles are hetrosexual and a lot of the recently pedophiles reported in the news were women molesting boys.