Scripture shows no such thing, The Gospels declare the Good News.
Put your faith in God and not in the world, we are in the world but not of the world.
The historic sex abuse scandal is highlighted and being dealt with. And it should never happen again either in the secular or religious world.
but then we could say all sins of the flesh will stop, but I highly doubt that. Do you?
humanity as a whole is fraught with sin. And that is in a large part due to temptation and weakness. The first sin, disobedience , resulted from temptation by the devil.