I know how I would react. I love my children. I would continue to love them, and I would give them all the support that I possibly could.
And that's admirable, but sometimes, the result of "supporting" someone is to enable them to continue in their destructive or sinful behavior. It's not unlike the dilemma we face when we give money to a panhandler. It makes sense from a simple compassionate viewpoint until you realize that many of them just save it up until they can buy another bottle of hooch.