It is NOT highly unlikely. Look up "pedophile furry" and you will find hundreds if not thousands of cases of sexual assaults against children. That's JUST the furries who ACTUALLY assault children.
Not all of the furries who are just pedophiles in general, but don't actually try to commit crimes. The only crime they commit is usage of underage NSFW. Which means that there could be hundreds of thousands of furries who are pedophiles out there.