There was not this culture in my VERY conservative, bible belt schools. I don't recall any bullying of wrestlers. But, you make a point and I get it.
With that said, not everyone reacts the same to trauma like molestation. I know people who were molested and have grown to seek attention from the same type of person that molested them. I know people who can't be touched by the person of the gender who molested them. I have met people whose relationships or dealings with people were not impacted by the molestation, and it's more of an internal blaming. I could go on and on about the different reactions. (For reference, I worked at an advocacy center dealing with severe sexual abuse.) I don't think the fact that he wrestles proves or disproves anything, at all. Trauma manifests in all different ways. In fact, one way it manifests in a person, can be that they desire to do everything normally to shield their trauma from everyone around. Or, they desire to gain affirmation and acceptance by their abuser, especially in the case of a parent or close person.
He came from a family of wrestlers, so he didn't just seek out tangling with dudes. He grew up being around it, and it only makes sense he would enter it himself. He didn't wake up one day and decide to be a wrestler. There could have been a family expectation, or simply a person desire to do what his family did. That is not surprising. We need to be very, very careful in dismissing abuse based on the hobbies of a person. (Not that I would ever defend this monster, I am speaking more in general terms.) To add, why would we assume he would have been molested by a man? Women are just as capable of molesting.