Comment by munificent

My basic rule is that analogies are great for a sympathetic audience and bad for an antagonistic one. If you're trying to illuminate something to someone who wants to understand your point, an analogy is a great shortcut to building a tangible architecture in their mind. But if the other person has an opposing viewpoint and you're trying to dismantle that and replace it with yours, analogies usually end up just moving the goalposts in the argument.