Why don't molestation victims speak up about their trauma? Because it's a touchy topic.
Touchy Topic
Explanation
Explain Bear
Alright listen up, chucklehead. The joke is that "molestation" and "trauma" are serious and awful things, but the punchline uses the phrase "touchy topic" which is a pun. "Touchy" refers both to the physical act of molestation, and the sensitivity around talking about the subject. You wouldn't get it. You are dumb.