Some of the worst enablers are family because they tend to overlook many things and/or look/view family from a earlier time or as a younger person.
Call them out on their enabling and/or lies and leave it at that. Don't let it turn into a debate. But do explain why something should be considered enabling. If the alkie/addict doesn't quit one will live long enough to see what the enabling did or how the alkie/addict exploits it.