Only drunks and children tell the truth. But not drunk children, they all lie about me taking advantage of them.
Are you talking about children getting taken advantage of sexually?
Yes, but I'm only making a joke about it.
That joke serves to trivialize real harm that is done to children through sexual abuse. Imagine what you would think of this joke if your own child was a victim of such abuse.
Yeah, that's what makes it funny.
It is wrong to find sexual abuse funny, and even more wrong when the abuse is of a child. You should think about why you think that joke is funny and maybe talk to someone about your feelings on this topic.