I think one of the reasons MLMs flourish is because of the reluctance of friends and families to tell the bots the truth. It is human nature to want them to be happy and not upset them. With everyone being quiet or trying to support them by buying products, the MLMs continue. We, as society need to stop the spread.
Although in reality we need to be considerate to our relationships and the consequences of upsetting people. MLMs rely on human nature for people to support them. And they rely on removing these societal norms in the bots to make them do things they would never have done before. It's all so sinister.
So Nanny, it is the right thing to do to tell your friend the truth. But we can't always do the right thing. You need to assess how much your friend needs to hear the truth and how much you value the friendship. It is very very complicated.
I stood by and watched my friend get taken by FL. I will never stand by again if other people I know start to become botted. But I may have become a little obsessed.