'but can you find a list of transgender criminals that have preyed on vulnerable people through their positions of authority in association with schools, churches, community outreach programs for the disabled?'

A transgender of authority or not who have preyed on vulnerable people and especially children is to me a criminal regardless if one served prison time or not.
The people who claim they are 'all inclusive' and insist others follow their notion a man says he is a women and vice-versa is baloney to me and they should mind their own business.
Check the web and you will find the answers you are looking for.

'If you can, I'll be surprised and join you in condemning transgender associations that shelter those criminals (as the RCC does for its criminals.'

Define RCC. I'm not familiar with the abbreviation.

These people may not criminals, but some teachers and those in authority have sheltered the LGBTQ+ community and imo have no business what so ever thinking they have the right to go off the norm the teaching of the '3Rs' and instead indoctrinate children according to their mindset. It is the parent who makes the decision what extra curricular activities they want their children to be taught.

as per the article,

'while opponents contended that schools are usurping parental authority and pushing unnecessary and even harmful views on gender'
'Some opponents wore T-shirts emblazoned with: 'Leave our kids alone.''

apnews.com - Glendale school district pride month protests fighting

'Until that day I'll contain my concern to those organizations that knowingly shelter pedophiles rather than immediately reporting them to the authorities... including the Roman Catholic Church into which I was baptized.'

I agree. Pedophiles from any walk of life are disgusting people.