If I was truly honest, and told them to give up the craft, or to go to back to school (some of these folks literally need to start all over at the Kindergarten level), I would be harassed for eternity. Most people simply can’t accept or comprehend the truth and, no matter how reasonable or gentle your message to them is, they will never believe it and they will hate you for delivering it. They may even try to destroy your reputation online through libelous, anonymous posts.