I was a member of several evangelical Protestant churches in my life before becoming Catholic at age 47. In three of those churches, cases of abuse took place. One of those situations involved repeated rape of a child by a church staff member.
My husband and I were dating, and at age 16, we attended a youth conference during which we personally witnessed sexual impropriety between a minister and several teenagers. We reported what we had seen, and the pastor was fired. I don’t believe any charges were brought.
I think that this is a “tip of the iceberg”. I’m sure that many other Protestant churches have experienced abuse of children and teenagers by adults, but the reports have never come to light and probably never will.
In the evangelical Protestant churches, pastors and church workers are asked to leave, and they usually are never seen again and the whole thing is hushed up and those who insist on talking about it are shunned or asked to leave, too. The abusers go into secular careers.
Here is a link to one of the saddest cases in recent times, the infamous Mamou case:
christianitytoday.com/ct/1998/april27/8t5016.html
There have been books written about this case.
We were part of this denomination for ten years, and one of our biggest objections to this denom was the practice of missionaries sending their children away for boarding school at age 6. Many missionaries told us that the practice was harmless and that they loved being in boarding school. But we insisted that this was not the way God intended for parents to raise their children. It was only recently, in the late 1990s, that this whole thing blew up in the face of the C & MA. We personally suspect that there are probably many other incidents that still haven’t come to light. At least the C&MA has made a very heartfelt and public apology and has committed to helping anyone who was damaged by the abuse. (You’ll have to google around to find the apology; it might still be up on the official C&MA website.)